Remove unused audio_e2e_harness.cc and infrastructure.

webrtc/tools/tools.gyp

Index: webrtc/tools/tools.gyp
diff --git a/webrtc/tools/tools.gyp b/webrtc/tools/tools.gyp
index 1477a83f368b10e770f5e4bcd2c5df86c45e4f39..12eff5de2a2d8f190a73eb9646ea3bbe1ab5f516 100644
--- a/webrtc/tools/tools.gyp
+++ b/webrtc/tools/tools.gyp
@@ -177,20 +177,6 @@
           ],
         },  # activity_metric
         {
-          'target_name': 'audio_e2e_harness',
-          'type': 'executable',
-          'dependencies': [
-            '<(webrtc_root)/test/test.gyp:channel_transport',
-            '<(webrtc_root)/voice_engine/voice_engine.gyp:voice_engine',
-            '<(webrtc_root)/system_wrappers/system_wrappers.gyp:system_wrappers_default',
-            '<(DEPTH)/testing/gtest.gyp:gtest',
-            '<(DEPTH)/third_party/gflags/gflags.gyp:gflags',
-          ],
-          'sources': [
-            'e2e_quality/audio/audio_e2e_harness.cc',
-          ],
-        }, # audio_e2e_harness
-        {
           'target_name': 'tools_unittests',
           'type': '<(gtest_target_type)',
           'dependencies': [