Remove all traces of Dr Memory.

tools/valgrind-webrtc/drmemory/PRESUBMIT.py

-#!/usr/bin/env python
-# Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
-#
-# Use of this source code is governed by a BSD-style license
-# that can be found in the LICENSE file in the root of the source
-# tree. An additional intellectual property rights grant can be found
-# in the file PATENTS.  All contributing project authors may
-# be found in the AUTHORS file in the root of the source tree.
-
-"""
-Copied from Chrome's src/tools/valgrind/drmemory/PRESUBMIT.py
-
-See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
-for more details on the presubmit API built into gcl.
-"""
-
-import os
-
-
-def CheckChange(input_api, output_api):
-  """Checks the DrMemory suppression files for bad suppressions."""
-
-  # Add the path to the Chrome valgrind dir to the import path:
-  tools_vg_path = os.path.join(input_api.PresubmitLocalPath(), '..', '..',
-                               'valgrind')
-  import sys
-  old_path = sys.path
-  try:
-    sys.path = sys.path + [tools_vg_path]
-    import suppressions
-    return suppressions.PresubmitCheck(input_api, output_api)
-  finally:
-    sys.path = old_path
-
-
-def CheckChangeOnUpload(input_api, output_api):
-  return CheckChange(input_api, output_api)
-
-
-def CheckChangeOnCommit(input_api, output_api):
-  return CheckChange(input_api, output_api)
-
-
-def GetPreferredTrySlaves():
-  # We don't have any Dr Memory trybots yet, so there's no use for this method.
-  # When we have, the slave name(s) should be put into this list.
-  return []