diff --git a/api/task_queue/BUILD.gn b/api/task_queue/BUILD.gn
index a410c53..e0e2e50 100644
--- a/api/task_queue/BUILD.gn
+++ b/api/task_queue/BUILD.gn
@@ -20,7 +20,6 @@
     "..:location",
     "../../rtc_base:checks",
     "../../rtc_base:macromagic",
-    "../../rtc_base:voucher",
     "../../rtc_base/system:rtc_export",
     "../units:time_delta",
   ]
diff --git a/api/task_queue/task_queue_base.cc b/api/task_queue/task_queue_base.cc
index 78c9a27..ecdc7f7 100644
--- a/api/task_queue/task_queue_base.cc
+++ b/api/task_queue/task_queue_base.cc
@@ -14,7 +14,6 @@
 #include "absl/functional/any_invocable.h"
 #include "api/units/time_delta.h"
 #include "rtc_base/checks.h"
-#include "rtc_base/voucher.h"
 
 #if defined(ABSL_HAVE_THREAD_LOCAL)
 
@@ -29,23 +28,6 @@
   return current;
 }
 
-void TaskQueueBase::PostTask(absl::AnyInvocable<void() &&> task,
-                             const Location& location) {
-  PostTaskInternal(std::move(task), PostTaskTraits{}, location);
-}
-
-void TaskQueueBase::PostTaskInternal(absl::AnyInvocable<void() &&> task,
-                                     const PostTaskTraits& traits,
-                                     const Location& location) {
-  auto current = Voucher::Current();
-  PostTaskImpl(
-      [task = std::move(task), current = std::move(current)]() mutable {
-        Voucher::ScopedSetter setter(std::move(current));
-        std::move(task)();
-      },
-      traits, location);
-}
-
 TaskQueueBase::CurrentTaskQueueSetter::CurrentTaskQueueSetter(
     TaskQueueBase* task_queue)
     : previous_(current) {
diff --git a/api/task_queue/task_queue_base.h b/api/task_queue/task_queue_base.h
index b285716..89e9e9e 100644
--- a/api/task_queue/task_queue_base.h
+++ b/api/task_queue/task_queue_base.h
@@ -64,7 +64,9 @@
   //
   // May be called on any thread or task queue, including this task queue.
   void PostTask(absl::AnyInvocable<void() &&> task,
-                const Location& location = Location::Current());
+                const Location& location = Location::Current()) {
+    PostTaskImpl(std::move(task), PostTaskTraits{}, location);
+  }
 
   // Prefer PostDelayedTask() over PostDelayedHighPrecisionTask() whenever
   // possible.
@@ -185,11 +187,6 @@
   // Users of the TaskQueue should call Delete instead of directly deleting
   // this object.
   virtual ~TaskQueueBase() = default;
-
- private:
-  void PostTaskInternal(absl::AnyInvocable<void() &&> task,
-                        const PostTaskTraits& traits,
-                        const Location& location);
 };
 
 struct TaskQueueDeleter {
diff --git a/rtc_base/BUILD.gn b/rtc_base/BUILD.gn
index 67d2b86..ac237ed 100644
--- a/rtc_base/BUILD.gn
+++ b/rtc_base/BUILD.gn
@@ -1453,21 +1453,6 @@
   absl_deps = [ "//third_party/abseil-cpp/absl/strings" ]
 }
 
-rtc_library("voucher") {
-  sources = [
-    "voucher.cc",
-    "voucher.h",
-  ]
-  deps = [
-    ":macromagic",
-    ":refcount",
-    "../api:make_ref_counted",
-    "synchronization:mutex",
-    "system:rtc_export",
-  ]
-  absl_deps = [ "//third_party/abseil-cpp/absl/container:inlined_vector" ]
-}
-
 rtc_library("stream") {
   visibility = [ "*" ]
   sources = [
diff --git a/rtc_base/voucher.cc b/rtc_base/voucher.cc
deleted file mode 100644
index 46dd780..0000000
--- a/rtc_base/voucher.cc
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- *  Copyright 2023 The WebRTC Project Authors. All rights reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#include "rtc_base/voucher.h"
-
-#include <memory>
-#include <utility>
-
-#include "api/make_ref_counted.h"
-
-namespace webrtc {
-namespace {
-
-rtc::FinalRefCountedObject<Voucher>*& CurrentVoucherStorage() {
-  static thread_local rtc::FinalRefCountedObject<Voucher>* storage = nullptr;
-  return storage;
-}
-
-}  // namespace
-
-Voucher::ScopedSetter::ScopedSetter(Ptr voucher)
-    : old_current_(Voucher::Current()) {
-  Voucher::SetCurrent(std::move(voucher));
-}
-
-Voucher::ScopedSetter::~ScopedSetter() {
-  Voucher::SetCurrent(std::move(old_current_));
-}
-
-Voucher::Attachment::Id Voucher::Attachment::GetNextId() {
-  static std::atomic<Voucher::Attachment::Id> current_id = 0;
-  auto id = current_id.fetch_add(1);
-  RTC_CHECK(id < Voucher::kAttachmentCapacity);
-  return id;
-}
-
-Voucher::Ptr Voucher::CurrentOrCreateForCurrentTask() {
-  auto& storage = CurrentVoucherStorage();
-  Voucher::Ptr result(storage);
-  if (!result) {
-    result = rtc::make_ref_counted<Voucher>();
-    storage = result.get();
-    storage->AddRef();
-  }
-  return result;
-}
-
-Voucher::Ptr Voucher::Current() {
-  auto& storage = CurrentVoucherStorage();
-  Voucher::Ptr result(storage);
-  return result;
-}
-
-Voucher::Voucher() : attachments_(Voucher::kAttachmentCapacity) {}
-
-void Voucher::SetCurrent(Voucher::Ptr value) {
-  auto& storage = CurrentVoucherStorage();
-  if (value.get() != storage) {
-    if (storage) {
-      storage->Release();
-    }
-    storage = value.release();
-  }
-}
-
-void Voucher::SetAttachment(Attachment::Id id,
-                            std::unique_ptr<Attachment> attachment) {
-  RTC_CHECK(id < kAttachmentCapacity);
-  MutexLock lock(&mu_);
-  attachments_[id] = std::move(attachment);
-}
-
-}  // namespace webrtc
diff --git a/rtc_base/voucher.h b/rtc_base/voucher.h
deleted file mode 100644
index 30a6460..0000000
--- a/rtc_base/voucher.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- *  Copyright 2023 The WebRTC Project Authors. All rights reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#ifndef RTC_BASE_VOUCHER_H_
-#define RTC_BASE_VOUCHER_H_
-
-#include <memory>
-
-#include "absl/container/inlined_vector.h"
-#include "rtc_base/ref_counted_object.h"
-#include "rtc_base/synchronization/mutex.h"
-#include "rtc_base/system/rtc_export.h"
-
-namespace webrtc {
-
-// A voucher is associated with a currently running task tree. Whenever tasks
-// are posted, the current voucher is inherited and set as current in the new
-// task. The voucher exists for as long as there are direct and indirect
-// tasks running that descend from the task where the voucher was created.
-class RTC_EXPORT Voucher {
- public:
-  static constexpr size_t kAttachmentCapacity = 4;
-
-  using Ptr = rtc::scoped_refptr<rtc::FinalRefCountedObject<Voucher>>;
-
-  // Vouchers aggregate attachments, which are application-specific attachments
-  // that have logic unrelated to the mechanics of Voucher progression.
-  class Attachment {
-   public:
-    using Id = size_t;
-
-    // Attachments should call this function one to get an ID to use with
-    // SetAttachment.
-    static Attachment::Id GetNextId();
-
-    virtual ~Attachment() = default;
-  };
-
-  // Scoped setter that saves the current voucher on stack and instates a new
-  // one, until the scope exits.
-  class ScopedSetter {
-   public:
-    explicit ScopedSetter(Ptr voucher);
-    ~ScopedSetter();
-
-   private:
-    Ptr old_current_;
-  };
-
-  static Ptr Current();
-  static Ptr CurrentOrCreateForCurrentTask();
-
-  // For Attachments: stores an attachment into a voucher. If one is already
-  // present, it gets replaced.
-  void SetAttachment(Attachment::Id id, std::unique_ptr<Attachment> attachment);
-
- private:
-  friend class rtc::FinalRefCountedObject<webrtc::Voucher>;
-  Voucher();
-
-  friend class ScopedSetter;
-  static void SetCurrent(Ptr ptr);
-
-  Mutex mu_;
-  absl::InlinedVector<std::unique_ptr<Attachment>, kAttachmentCapacity>
-      attachments_ RTC_GUARDED_BY(&mu_);
-};
-
-}  // namespace webrtc
-
-#endif  // RTC_BASE_VOUCHER_H_
diff --git a/video/BUILD.gn b/video/BUILD.gn
index 850b454..1722ad4 100644
--- a/video/BUILD.gn
+++ b/video/BUILD.gn
@@ -448,7 +448,6 @@
     "../rtc_base:safe_conversions",
     "../rtc_base:stringutils",
     "../rtc_base:timeutils",
-    "../rtc_base:voucher",
     "../rtc_base/experiments:balanced_degradation_settings",
     "../rtc_base/experiments:encoder_info_settings",
     "../rtc_base/experiments:field_trial_parser",
diff --git a/video/video_stream_encoder.cc b/video/video_stream_encoder.cc
index c9bd604..2e5a120 100644
--- a/video/video_stream_encoder.cc
+++ b/video/video_stream_encoder.cc
@@ -49,9 +49,7 @@
 #include "rtc_base/strings/string_builder.h"
 #include "rtc_base/system/no_unique_address.h"
 #include "rtc_base/thread_annotations.h"
-#include "rtc_base/time_utils.h"
 #include "rtc_base/trace_event.h"
-#include "rtc_base/voucher.h"
 #include "system_wrappers/include/metrics.h"
 #include "video/adaptation/video_stream_encoder_resource_manager.h"
 #include "video/alignment_adjuster.h"
@@ -85,35 +83,6 @@
 
 constexpr int kDefaultMinScreenSharebps = 1200000;
 
-// This voucher attachment measures the time from a passed capture reference
-// time to the time when the voucher is destroyed.
-class CaptureProcessingDurationMeasurement : public Voucher::Attachment {
- public:
-  static void AttachToCurrentVoucher(Timestamp capture_reference_time) {
-    static const Voucher::Attachment::Id kCaptureToEncodeAttachmentId =
-        Voucher::Attachment::GetNextId();
-    auto voucher = Voucher::CurrentOrCreateForCurrentTask();
-    voucher->SetAttachment(
-        kCaptureToEncodeAttachmentId,
-        std::make_unique<CaptureProcessingDurationMeasurement>(
-            capture_reference_time));
-  }
-  explicit CaptureProcessingDurationMeasurement(
-      Timestamp capture_reference_time)
-      : capture_reference_time_(capture_reference_time) {}
-  ~CaptureProcessingDurationMeasurement() override {
-    auto duration =
-        Clock::GetRealTimeClock()->CurrentTime() - capture_reference_time_;
-    TRACE_EVENT1("webrtc", "CaptureProcessingDurationMeasurement", "duration",
-                 duration.us());
-    RTC_HISTOGRAM_COUNTS_1000("WebRTC.Video.CaptureToSendTimeMs",
-                              duration.ms());
-  }
-
- private:
-  const Timestamp capture_reference_time_;
-};
-
 int GetNumSpatialLayers(const VideoCodec& codec) {
   if (codec.codecType == kVideoCodecVP9) {
     return codec.VP9().numberOfSpatialLayers;
@@ -2065,9 +2034,6 @@
 
   frame_encode_metadata_writer_.OnEncodeStarted(out_frame);
 
-  CaptureProcessingDurationMeasurement::AttachToCurrentVoucher(
-      out_frame.reference_time().value_or(clock_->CurrentTime()));
-
   const int32_t encode_status = encoder_->Encode(out_frame, &next_frame_types_);
   was_encode_called_since_last_initialization_ = true;