NaCl: Remove now-unneeded SRPC reverse service code

ppapi/native_client/src/trusted/plugin/plugin.gyp

 # -*- python -*-
 # Copyright (c) 2011 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'includes': [
     'plugin.gypi',
   ],
   'targets': [
     {
       'target_name': 'nacl_trusted_plugin',
       'type': 'static_library',
       'sources': [
         '<@(common_sources)',
       ],
       'dependencies': [
         '<(DEPTH)/media/media.gyp:shared_memory_support',
         '<(DEPTH)/native_client/src/shared/gio/gio.gyp:gio',
         '<(DEPTH)/native_client/src/shared/imc/imc.gyp:imc',
         '<(DEPTH)/native_client/src/shared/platform/platform.gyp:platform',
         '<(DEPTH)/native_client/src/shared/srpc/srpc.gyp:nonnacl_srpc',
         '<(DEPTH)/native_client/src/trusted/desc/desc.gyp:nrd_xfer',
         '<(DEPTH)/native_client/src/trusted/nonnacl_util/nonnacl_util.gyp:sel_ldr_launcher_base',
         '<(DEPTH)/native_client/src/trusted/platform_qualify/platform_qualify.gyp:platform_qual_lib',
         '<(DEPTH)/native_client/src/trusted/simple_service/simple_service.gyp:simple_service',
-        '<(DEPTH)/native_client/src/trusted/reverse_service/reverse_service.gyp:reverse_service',
-        '<(DEPTH)/native_client/src/trusted/weak_ref/weak_ref.gyp:weak_ref',
         '<(DEPTH)/ppapi/ppapi.gyp:ppapi_cpp_objects',
         '<(DEPTH)/ppapi/ppapi.gyp:ppapi_internal_module',
       ],
       # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
       'msvs_disabled_warnings': [4267, ],
     },
   ],
 }