Remove --allow-file-access and accompanying logic

chrome/test/base/chrome_test_launcher.cc

Index: chrome/test/base/chrome_test_launcher.cc
diff --git a/chrome/test/base/chrome_test_launcher.cc b/chrome/test/base/chrome_test_launcher.cc
index 29cb9f0c3ad11f8dad17bfd5fe1cb155990eec09..1a73281265b5b42a7f91f10030336cb22067d670 100644
--- a/chrome/test/base/chrome_test_launcher.cc
+++ b/chrome/test/base/chrome_test_launcher.cc
@@ -88,9 +88,6 @@ bool ChromeTestLauncherDelegate::AdjustChildProcessCommandLine(
 
   new_command_line.AppendSwitchPath(switches::kUserDataDir, temp_data_dir);
 
-  // file:// access for ChromeOS.
-  new_command_line.AppendSwitch(switches::kAllowFileAccess);
-
   *command_line = new_command_line;
   return true;
 }