Removed an unused variable from CallPerfTest::TestAudioVideoSync()

webrtc/call/call_perf_tests.cc

Index: webrtc/call/call_perf_tests.cc
diff --git a/webrtc/call/call_perf_tests.cc b/webrtc/call/call_perf_tests.cc
index 558b75c8426d5b1a524c658876f4ca095b33483d..f3a20584a1eed315381f1783ce3fd913521a3269 100644
--- a/webrtc/call/call_perf_tests.cc
+++ b/webrtc/call/call_perf_tests.cc
@@ -29,7 +29,6 @@
 #include "webrtc/test/drifting_clock.h"
 #include "webrtc/test/encoder_settings.h"
 #include "webrtc/test/fake_audio_device.h"
-#include "webrtc/test/fake_decoder.h"
 #include "webrtc/test/fake_encoder.h"
 #include "webrtc/test/field_trial.h"
 #include "webrtc/test/frame_generator.h"
@@ -205,8 +204,6 @@ void CallPerfTest::TestAudioVideoSync(FecMode fec,
       payload_type_map_, FakeNetworkPipe::Config());
   receive_transport.SetReceiver(sender_call_->Receiver());
 
-  test::FakeDecoder fake_decoder;
-
   CreateSendConfig(1, 0, 0, &video_send_transport);
   CreateMatchingReceiveConfigs(&receive_transport);