[iOS] Remove dependency on //mojo on iOS due to build failure.

build/all.gyp

Index: build/all.gyp
diff --git a/build/all.gyp b/build/all.gyp
index b93ea6969f7b013c0716eaf75405f93f63e1deac..3c160c3d89c61245d7f1d10298f9deb7f71d8272 100644
--- a/build/all.gyp
+++ b/build/all.gyp
@@ -53,18 +53,18 @@
             # NOTE: This list of targets is present because
             # mojo_base.gyp:mojo_base cannot be built on iOS, as
             # javascript-related targets cause v8 to be built.
-            '../mojo/mojo_base.gyp:mojo_common_lib',
-            '../mojo/mojo_base.gyp:mojo_common_unittests',
-            '../mojo/mojo_edk.gyp:mojo_system_impl',
             # TODO(crbug.com/605508): http://crrev.com/1832703002 introduced
             # a dependency on //third_party/WebKit that cause build failures
             # when using Xcode version of clang (loading clang plugin fails).
+            # '../mojo/mojo_base.gyp:mojo_common_lib',
+            # '../mojo/mojo_base.gyp:mojo_common_unittests',
+            # '../mojo/mojo_edk.gyp:mojo_system_impl',
             # '../mojo/mojo_edk_tests.gyp:mojo_public_bindings_unittests',
-            '../mojo/mojo_edk_tests.gyp:mojo_public_system_unittests',
-            '../mojo/mojo_edk_tests.gyp:mojo_system_unittests',
-            '../mojo/mojo_public.gyp:mojo_cpp_bindings',
-            '../mojo/mojo_public.gyp:mojo_public_test_utils',
-            '../mojo/mojo_public.gyp:mojo_system',
+            # '../mojo/mojo_edk_tests.gyp:mojo_public_system_unittests',
+            # '../mojo/mojo_edk_tests.gyp:mojo_system_unittests',
+            # '../mojo/mojo_public.gyp:mojo_cpp_bindings',
+            # '../mojo/mojo_public.gyp:mojo_public_test_utils',
+            # '../mojo/mojo_public.gyp:mojo_system',
             '../google_apis/google_apis.gyp:google_apis_unittests',
             '../skia/skia_tests.gyp:skia_unittests',
             '../ui/base/ui_base_tests.gyp:ui_base_unittests',