NaCl: Remove now-unneeded SRPC reverse service code

ppapi/native_client/src/trusted/plugin/pnacl_coordinator.cc

 // 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.
 
 #include "ppapi/native_client/src/trusted/plugin/pnacl_coordinator.h"
 
 #include <algorithm>
+#include <sstream>
 #include <utility>
 
 #include "native_client/src/include/portability_io.h"
 #include "native_client/src/shared/platform/nacl_check.h"
 #include "native_client/src/trusted/service_runtime/include/sys/stat.h"
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/private/ppb_uma_private.h"
 
@@ skipping 430 matching lines @@
                                   invalid_desc_wrapper_.get(),
                                   &error_info_,
                                   resources_.get(),
                                   &pnacl_options_,
                                   architecture_attributes_,
                                   this,
                                   plugin_);
 }
 
 }  // namespace plugin