[Clean up] Remove code related to install test ca in Telemetry

telemetry/telemetry/internal/backends/chrome/chrome_browser_backend.py

 # 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.
 
 import logging
 import os
 import pprint
 import re
 import shlex
 import sys
@@ skipping 128 matching lines @@
   def is_webview(self):
     return False
 
   def GetReplayBrowserStartupArgs(self):
     replay_args = []
     network_backend = self.platform_backend.network_controller_backend
     if not network_backend.is_initialized:
       return []
     proxy_port = network_backend.forwarder.port_pair.remote_port
     replay_args.append('--proxy-server=socks://localhost:%s' % proxy_port)
-    if not network_backend.is_test_ca_installed and not self.is_webview:
+    if not self.is_webview:
       # Ignore certificate errors for certs that are signed with Wpr's root.
       # For more details on this flag, see crbug.com/753948.
       wpr_public_hash_file = os.path.join(util.GetCatapultDir(),
                                           'web_page_replay_go',
                                           'wpr_public_hash.txt')
       if not os.path.exists(wpr_public_hash_file):
         raise exceptions.PathMissingError('Unable to find %s' %
                                           wpr_public_hash_file)
       with open(wpr_public_hash_file) as f:
         wpr_public_hash = f.readline().strip()
         replay_args.append('--ignore-certificate-errors-spki-list=' +
                            wpr_public_hash)
-    elif not network_backend.is_test_ca_installed and self.is_webview:
+    elif self.is_webview:
       # --ignore-certificate-errors-spki-list doesn't work with webview yet
       # (crbug.com/753948)
       replay_args.append('--ignore-certificate-errors')
     return replay_args
 
   def HasBrowserFinishedLaunching(self):
     assert self._port, 'No DevTools port info available.'
     return devtools_client_backend.IsDevToolsAgentAvailable(
         self._port,
         self._browser_target, self)
@@ skipping 163 matching lines @@
   def supports_cpu_metrics(self):
     return True
 
   @property
   def supports_memory_metrics(self):
     return True
 
   @property
   def supports_power_metrics(self):
     return True