Do not ignore -t, -u arguments to iossim

testing/iossim/iossim.mm

 // Copyright (c) 2012 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 <Foundation/Foundation.h>
 #include <getopt.h>
 #include <string>
 
 namespace {
 
 void PrintUsage() {
@@ skipping 341 matching lines @@
       case 'p':
         wants_print_home = true;
         break;
       case 'l':
         PrintSupportedDevices(simctl_list);
         exit(kExitSuccess);
         break;
       case 'h':
         PrintUsage();
         exit(kExitSuccess);
-      case 'u':
-      case 't':
-        // Ignore 'u' and 't', used by old version of iossim.
         break;
       default:
         PrintUsage();
         exit(kExitInvalidArguments);
     }
   }
 
   NSString* udid = GetDeviceBySDKAndName(simctl_list, device_name, sdk_version);
   if (udid == nil) {
     LogError(@"Unable to find a device %@ with SDK %@.", device_name,
@@ skipping 39 matching lines @@
   } else {
     LogError(@"Unable to parse command line arguments.");
     PrintUsage();
     exit(kExitInvalidArguments);
   }
 
   RunApplication(app_path, xctest_path, udid, app_env, cmd_args);
   KillSimulator();
   return kExitSuccess;
 }