Remove non-existing headers from the build

remoting/base/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 source_set("base") {
   sources = [
     "auto_thread.cc",
     "auto_thread.h",
     "auto_thread_task_runner.cc",
     "auto_thread_task_runner.h",
@@ skipping 90 matching lines @@
     "//base",
     "//google_apis",
     "//net",
   ]
 }
 
 source_set("breakpad") {
   sources = [
     "breakpad.h",
     "breakpad_linux.cc",
-    "breakpad_linux.h",
     "breakpad_mac.mm",
     "breakpad_win.cc",
   ]
 
   configs += [ "//build/config/compiler:wexit_time_destructors" ]
 
   deps = [
     "//base",
   ]
 
@@ skipping 58 matching lines @@
   ]
 
   if (is_win || is_mac || is_chromeos) {
     deps += [ "//breakpad:client" ]
   }
 
   if (is_win) {
     libs = [ "rpcrt4.lib" ]  # For UuidCreate in breakpad_win_unittest.cc.
   }
 }