Remove build_with_libjingle and exclude failing iOS tests from 'All' target.

webrtc/modules/audio_device/audio_device.gypi

 # Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 {
   'targets': [
@@ skipping 182 matching lines @@
                   '-lmsdmo.lib',
                 ],
               },
             }],
           ], # conditions
         }], # include_internal_audio_device==1
       ], # conditions
     },
   ],
   'conditions': [
-    ['include_tests==1', {
+    # Does not compile on iOS: webrtc:4755.
+    ['include_tests==1 and OS!="ios"', {
       'targets': [
         {
           'target_name': 'audio_device_tests',
          'type': 'executable',
          'dependencies': [
             'audio_device',
             'webrtc_utility',
             '<(webrtc_root)/test/test.gyp:test_support_main',
             '<(DEPTH)/testing/gtest.gyp:gtest',
             '<(webrtc_root)/system_wrappers/system_wrappers.gyp:system_wrappers',
@@ skipping 15 matching lines @@
             '<(DEPTH)/testing/gtest.gyp:gtest',
           ],
           'sources': [
             'test/audio_device_test_func.cc',
             'test/audio_device_test_defines.h',
             'test/func_test_manager.cc',
             'test/func_test_manager.h',
           ],
         },
       ], # targets
-    }], # include_tests
+    }], # include_tests==1 and OS!=ios
   ],
 }