Revert "Dump RenderThread stack on unresponsive"

bug:16563871
bug:16565900
bug:16555847
bug:16551643

This reverts commit ca66e06b9db6e6c921662886e4b7ddd02ac92280.

Change-Id: I23e8d4eaf828b1b298126ba5f36e4e8e7451706a
diff --git a/libs/hwui/renderthread/RenderProxy.cpp b/libs/hwui/renderthread/RenderProxy.cpp
index 1e91eb5..3f03093 100644
--- a/libs/hwui/renderthread/RenderProxy.cpp
+++ b/libs/hwui/renderthread/RenderProxy.cpp
@@ -412,7 +412,8 @@
     task->setReturnPtr(&retval);
     SignalingRenderTask syncTask(task, &mSyncMutex, &mSyncCondition);
     AutoMutex _lock(mSyncMutex);
-    mRenderThread.queueAndWait(&syncTask, mSyncCondition, mSyncMutex);
+    mRenderThread.queue(&syncTask);
+    mSyncCondition.wait(mSyncMutex);
     return retval;
 }