Removing Test and Staging environments from App Remoting Test Driver tool.

testing/chromoting/app_remoting_integration_tests.isolate

 # 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.
 {
   'conditions': [
     ['OS=="linux"', {
       'variables': {
         'command': [
           '../xvfb.py',
           '<(PRODUCT_DIR)',
           '<(PRODUCT_DIR)/ar_test_driver',
           '--username=appremotingtestdriver_chromium_01@lgtestuser.com',
-          '--environment=dev',
           '--refresh-token-file=../../remoting/tools/internal/refresh_tokens.json',
           '--show-host-availability',
           '--release-hosts-after-tests',
           '--verbosity=2',
           '--v=2',
         ],
         'files': [
           '../xvfb.py',
           '../test_env.py',
           '<(PRODUCT_DIR)/ar_test_driver',
           '../../remoting/tools/internal/refresh_tokens.json',
         ],
       },
     }],
     ['OS=="linux" and use_ozone==0', {
       'variables': {
         'files': [
           '<(PRODUCT_DIR)/xdisplaycheck<(EXECUTABLE_SUFFIX)',
         ],
       },
     }],
   ],
   'includes': [
     '../../base/base.isolate',
   ],
 }