Remove telemetry reference builds from chromium DEPS.

tools/export_tarball/export_tarball.py

 #!/usr/bin/env python
 # 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.
 
 """
 This tool creates a tarball with all the sources, but without .svn directories.
 
 It can also remove files which are not strictly required for build, so that
 the resulting tarball can be reasonably small (last time it was ~110 MB).
 
 Example usage:
 
 export_tarball.py /foo/bar
 
 The above will create file /foo/bar.tar.bz2.
 """
 
 import optparse
 import os
 import subprocess
 import sys
 import tarfile
 
 
 NONESSENTIAL_DIRS = (
     'breakpad/src/processor/testdata',
     'chrome/browser/resources/tracing/tests',
     'chrome/common/extensions/docs',
-    'chrome/tools/test/reference_build',
     'courgette/testdata',
     'data',
     'native_client/src/trusted/service_runtime/testdata',
     'src/chrome/test/data',
     'o3d/documentation',
     'o3d/samples',
     'o3d/tests',
     'ppapi/examples',
     'ppapi/native_client/tests',
     'third_party/angle/samples/gles2_book',
@@ skipping 148 matching lines @@
 
   if rc != 0:
     print 'xz -9 failed!'
     return 1
 
   return 0
 
 
 if __name__ == "__main__":
   sys.exit(main(sys.argv[1:]))