Remove unused --save-perf-json arg.

build/android/test_runner.py

 #!/usr/bin/env python
 #
 # Copyright 2013 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.
 
 """Runs all types of tests from one unified interface."""
 
 import argparse
 import collections
@@ skipping 363 matching lines @@
       '--regenerate-goldens',
       action='store_true', dest='regenerate_goldens',
       help='Causes the render tests to not fail when a check'
            'fails or the golden image is missing but to render'
            'the view and carry on.')
   parser.add_argument(
       '--runtime-deps-path',
       dest='runtime_deps_path', type=os.path.realpath,
       help='Runtime data dependency file from GN.')
   parser.add_argument(
-      '--save-perf-json',
-      action='store_true',
-      help='Saves the JSON file for each UI Perf test.')
-  parser.add_argument(
       '--screenshot-directory',
       dest='screenshot_dir', type=os.path.realpath,
       help='Capture screenshots of test failures')
   parser.add_argument(
       '--shared-prefs-file',
       dest='shared_prefs_file', type=os.path.realpath,
       help='The relative path to a file containing JSON list of shared '
            'preference files to edit and how to do so. Example list: '
            '[{'
            '  "package": "com.package.example",'
@@ skipping 527 matching lines @@
     if e.is_infra_error:
       return constants.INFRA_EXIT_CODE
     return constants.ERROR_EXIT_CODE
   except: # pylint: disable=W0702
     logging.exception('Unrecognized error occurred.')
     return constants.ERROR_EXIT_CODE
 
 
 if __name__ == '__main__':
   sys.exit(main())