Eliminate usage of InterfacePtr::WaitForIncomingResponse.

mojo/public/cpp/bindings/lib/interface_ptr_state.h

Index: mojo/public/cpp/bindings/lib/interface_ptr_state.h
diff --git a/mojo/public/cpp/bindings/lib/interface_ptr_state.h b/mojo/public/cpp/bindings/lib/interface_ptr_state.h
index c76fc9c1bca733cd73940631aeef53c21c53b34a..584933ebc91b417c96c1cbdaf3e532819f8067ca 100644
--- a/mojo/public/cpp/bindings/lib/interface_ptr_state.h
+++ b/mojo/public/cpp/bindings/lib/interface_ptr_state.h
@@ -108,13 +108,6 @@ class InterfacePtrState<Interface, false> {
 
   bool HasAssociatedInterfaces() const { return false; }
 
-  bool WaitForIncomingResponse() {
-    ConfigureProxyIfNecessary();
-
-    DCHECK(router_);
-    return router_->WaitForIncomingMessage(MOJO_DEADLINE_INDEFINITE);
-  }
-
   // After this method is called, the object is in an invalid state and
   // shouldn't be reused.
   InterfacePtrInfo<Interface> PassInterface() {
@@ -265,13 +258,6 @@ class InterfacePtrState<Interface, true> {
     return router_ ? router_->HasAssociatedEndpoints() : false;
   }
 
-  bool WaitForIncomingResponse() {
-    ConfigureProxyIfNecessary();
-
-    DCHECK(router_);
-    return router_->WaitForIncomingMessage(MOJO_DEADLINE_INDEFINITE);
-  }
-
   // After this method is called, the object is in an invalid state and
   // shouldn't be reused.
   InterfacePtrInfo<Interface> PassInterface() {