Update PRESUBMIT files for first round of ng trybots

chrome/browser/sync/PRESUBMIT.py

Index: chrome/browser/sync/PRESUBMIT.py
diff --git a/chrome/browser/sync/PRESUBMIT.py b/chrome/browser/sync/PRESUBMIT.py
deleted file mode 100644
index 84200943f08ffbfa6d9bb42061477704ae886521..0000000000000000000000000000000000000000
--- a/chrome/browser/sync/PRESUBMIT.py
+++ /dev/null
@@ -1,22 +0,0 @@
-# Copyright (c) 2012 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-"""Chromium presubmit script for src/chrome/browser/sync.
-
-See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
-for more details on the presubmit API built into gcl.
-"""
-
-def GetPreferredTryMasters(project, change):
-  return {
-    'tryserver.chromium.linux': {
-      'linux_chromium_rel': set(['defaulttests']),
-    },
-    'tryserver.chromium.mac': {
-      'mac_chromium_rel': set(['defaulttests']),
-    },
-    'tryserver.chromium.win': {
-      'win_chromium_rel': set(['defaulttests']),
-    }
-  }