Remove //tools/profile_chrome from Chromium repo

tools/profile_chrome/flags.py

-# Copyright 2015 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.
-
-import optparse
-
-def SystraceOptions(parser):
-  systrace_opts = optparse.OptionGroup(parser, 'Systrace tracing options')
-  systrace_opts.add_option('-s', '--systrace', help='Capture a systrace with '
-                           'the chosen comma-delimited systrace categories. You'
-                           ' can also capture a combined Chrome + systrace by '
-                           'enabling both types of categories. Use "list" to '
-                           'see the available categories. Systrace is disabled '
-                           'by default.', metavar='SYS_CATEGORIES',
-                           dest='systrace_categories', default='')
-  return systrace_opts
-
-
-def OutputOptions(parser):
-  output_options = optparse.OptionGroup(parser, 'Output options')
-  output_options.add_option('-o', '--output', help='Save trace output to file.')
-  output_options.add_option('--json', help='Save trace as raw JSON instead of '
-                            'HTML.', action='store_true')
-  output_options.add_option('--view', help='Open resulting trace file in a '
-                            'browser.', action='store_true')
-  return output_options