diff --git a/rtc_base/BUILD.gn b/rtc_base/BUILD.gn
index 6b34ade..e8a72c7 100644
--- a/rtc_base/BUILD.gn
+++ b/rtc_base/BUILD.gn
@@ -804,7 +804,6 @@
     "rtccertificategenerator.h",
     "signalthread.cc",
     "signalthread.h",
-    "sigslot.h",
     "sigslotrepeater.h",
     "socket.cc",
     "socket.h",
diff --git a/rtc_base/sigslot.h b/rtc_base/sigslot.h
deleted file mode 100644
index 51ab9d7..0000000
--- a/rtc_base/sigslot.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- *  Copyright 2018 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.
- */
-
-// This is a temporary header file to move origin header from this location
-// to specified in include. Don't use this header directly, use included one
-// instead.
-#include "rtc_base/third_party/sigslot/sigslot.h"