Revert "IWYU: fix generated protobuf include"

This reverts commit 8ae8263ecc04b6fd78886e9906194e71a574f88c.

Reason for revert: Breaks downstream project

Original change's description:
> IWYU: fix generated protobuf include
>
> as shown by
>   modules/audio_processing/aec_dump/capture_stream_info.h
>
> Follow-up to forward fix in
>   https://webrtc-review.googlesource.com/c/src/+/386860
>
> BUG=webrtc:42226242
>
> Change-Id: Iac11f9f679bb694dd4c25c1b87f498a5adef1a0d
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/387700
> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
> Reviewed-by: Artem Titov <titovartem@webrtc.org>
> Commit-Queue: Philipp Hancke <phancke@meta.com>
> Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#44540}

Bug: webrtc:42226242
Change-Id: Ie13034442c16f6539aef71206584a649d31efeb7
No-Iwyu: Breaks downstream project
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/390380
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Fredrik Solenberg <solenberg@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#44544}

api/DEPS

diff --git a/api/DEPS b/api/DEPS
index c909547..0efc076 100644
--- a/api/DEPS
+++ b/api/DEPS
@@ -257,10 +257,6 @@
     "+p2p/base/port_allocator.h",
   ],
 
-  "chrome_perf_dashboard_metrics_exporter_test.cc": [
-    "+external/webrtc/webrtc",  # Android platform build.
-  ],
-
   # .cc files in api/ should not be restricted in what they can #include,
   # so we re-add all the top-level directories here. (That's because .h
   # files leak their #includes to whoever's #including them, but .cc files

api/test/metrics/chrome_perf_dashboard_metrics_exporter_test.cc

diff --git a/api/test/metrics/chrome_perf_dashboard_metrics_exporter_test.cc b/api/test/metrics/chrome_perf_dashboard_metrics_exporter_test.cc
index f420b7a..ae1ab84 100644
--- a/api/test/metrics/chrome_perf_dashboard_metrics_exporter_test.cc
+++ b/api/test/metrics/chrome_perf_dashboard_metrics_exporter_test.cc
@@ -22,14 +22,6 @@
 #include "test/gtest.h"
 #include "test/testsupport/file_utils.h"
 #include "third_party/catapult/tracing/tracing/value/histogram.h"
-// Files generated at build-time by the protobuf compiler.
-#ifdef WEBRTC_ENABLE_PROTOBUF
-#ifdef WEBRTC_ANDROID_PLATFORM_BUILD
-#include "external/webrtc/webrtc/tracing/tracing/proto/histogram.pb.h"
-#else
-#include "tracing/tracing/proto/histogram.pb.h"
-#endif
-#endif
 
 namespace webrtc {
 namespace test {