Mojo C++ bindings: remove the single-threaded Router.

mojo/public/cpp/bindings/BUILD.gn

 # Copyright 2014 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.
 
 interfaces_bindings_gen_dir = "$root_gen_dir/mojo/public/interfaces/bindings"
 
 component("bindings") {
   sources = [
     # Normally, targets should depend on the source_sets generated by mojom
     # targets. However, the generated source_sets use portions of the bindings
@@ skipping 75 matching lines @@
     "lib/native_enum_data.h",
     "lib/native_enum_serialization.h",
     "lib/native_struct.cc",
     "lib/native_struct_data.cc",
     "lib/native_struct_data.h",
     "lib/native_struct_serialization.cc",
     "lib/native_struct_serialization.h",
     "lib/no_interface.cc",
     "lib/pipe_control_message_handler.cc",
     "lib/pipe_control_message_proxy.cc",
-    "lib/router.cc",
-    "lib/router.h",
     "lib/scoped_interface_endpoint_handle.cc",
     "lib/serialization.h",
     "lib/serialization_context.cc",
     "lib/serialization_context.h",
     "lib/serialization_forward.h",
     "lib/serialization_util.h",
     "lib/string_serialization.h",
     "lib/string_traits_string16.cc",
     "lib/sync_call_restrictions.cc",
     "lib/sync_handle_registry.cc",
@@ skipping 82 matching lines @@
     ]
 
     public_deps = [
       ":bindings",
       "//third_party/WebKit/Source/wtf",
     ]
 
     public_configs = [ "//third_party/WebKit/Source:config" ]
   }
 }