Remove unused audio_e2e_harness.cc and infrastructure.

webrtc/tools/BUILD.gn

Index: webrtc/tools/BUILD.gn
diff --git a/webrtc/tools/BUILD.gn b/webrtc/tools/BUILD.gn
index 04c4543b0af0f712fda7c730f611a4f607cc4328..37f015c1ea7050fdd53989fcfa4215c29424b56a 100644
--- a/webrtc/tools/BUILD.gn
+++ b/webrtc/tools/BUILD.gn
@@ -219,28 +219,6 @@ if (rtc_include_tests) {
     ]
   }
 
-  rtc_executable("audio_e2e_harness") {
-    testonly = true
-    sources = [
-      "e2e_quality/audio/audio_e2e_harness.cc",
-    ]
-
-    if (is_clang) {
-      # Suppress warnings from the Chromium Clang plugin.
-      # See http://code.google.com/p/webrtc/issues/detail?id=163 for details.
-      suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
-    }
-
-    deps = [
-      "../system_wrappers:system_wrappers_default",
-      "../test:channel_transport",
-      "../voice_engine",
-      "//build/win:default_exe_manifest",
-      "//testing/gtest",
-      "//third_party/gflags",
-    ]
-  }
-
   if (is_android || is_ios) {
     tools_unittests_resources = [ "//resources/foreman_cif.yuv" ]
   }