ice_transport_unittest.cc: Remove dead code.

remoting/protocol/ice_transport_unittest.cc

Index: remoting/protocol/ice_transport_unittest.cc
diff --git a/remoting/protocol/ice_transport_unittest.cc b/remoting/protocol/ice_transport_unittest.cc
index ccb3d8de96610a7f7d5357ddc1f0b89658c05fc9..8c5abd3f1dbc2d233f4e9650e21f89f663a0ae87 100644
--- a/remoting/protocol/ice_transport_unittest.cc
+++ b/remoting/protocol/ice_transport_unittest.cc
@@ -40,10 +40,6 @@ const int kMessageSize = 1024;
 const int kMessages = 100;
 const char kChannelName[] = "test_channel";
 
-ACTION_P(QuitRunLoop, run_loop) {
-  run_loop->Quit();
-}
-
 ACTION_P2(QuitRunLoopOnCounter, run_loop, counter) {
   --(*counter);
   EXPECT_GE(*counter, 0);