Revert "Dump RenderThread stack on unresponsive"

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

This reverts commit ca66e06b9db6e6c921662886e4b7ddd02ac92280.

Change-Id: I23e8d4eaf828b1b298126ba5f36e4e8e7451706a
4 files changed