Remove outgoing interface registry on RPH

content/public/test/mock_render_process_host.cc

Index: content/public/test/mock_render_process_host.cc
diff --git a/content/public/test/mock_render_process_host.cc b/content/public/test/mock_render_process_host.cc
index 8c955eefe17915cb4bbaacfdd096f0d356c899c6..3e77cdc72ab632c6182aa138e36700727942ca3a 100644
--- a/content/public/test/mock_render_process_host.cc
+++ b/content/public/test/mock_render_process_host.cc
@@ -262,10 +262,6 @@ base::TimeDelta MockRenderProcessHost::GetChildProcessIdleTime() const {
 void MockRenderProcessHost::NotifyTimezoneChange(const std::string& zone_id) {
 }
 
-shell::InterfaceRegistry* MockRenderProcessHost::GetInterfaceRegistry() {
-  return interface_registry_.get();
-}
-
 shell::InterfaceProvider* MockRenderProcessHost::GetRemoteInterfaces() {
   return remote_interfaces_.get();
 }