Revert "Add the streamListen and streamCancel rpcs to the vm service."

runtime/vm/service_isolate.cc

Index: runtime/vm/service_isolate.cc
diff --git a/runtime/vm/service_isolate.cc b/runtime/vm/service_isolate.cc
index ad6be9d1d98b97cfb88d017e7ad28ca781a6917b..3665cf3da69f31e91b501b4d33a5fd6e844888df 100644
--- a/runtime/vm/service_isolate.cc
+++ b/runtime/vm/service_isolate.cc
@@ -296,26 +296,6 @@ class ServiceIsolateNatives : public AllStatic {
       }
     }
   }
-
-  static void ListenStream(Dart_NativeArguments args) {
-    NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args);
-    Isolate* isolate = arguments->isolate();
-    StackZone stack_zone(isolate);
-    Zone* zone = stack_zone.GetZone();  // Used by GET_NON_NULL_NATIVE_ARGUMENT.
-    HANDLESCOPE(isolate);
-    GET_NON_NULL_NATIVE_ARGUMENT(String, stream_id, arguments->NativeArgAt(0));
-    Service::ListenStream(stream_id.ToCString());
-  }
-
-  static void CancelStream(Dart_NativeArguments args) {
-    NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args);
-    Isolate* isolate = arguments->isolate();
-    StackZone stack_zone(isolate);
-    Zone* zone = stack_zone.GetZone();  // Used by GET_NON_NULL_NATIVE_ARGUMENT.
-    HANDLESCOPE(isolate);
-    GET_NON_NULL_NATIVE_ARGUMENT(String, stream_id, arguments->NativeArgAt(0));
-    Service::CancelStream(stream_id.ToCString());
-  }
 };
 
 
@@ -335,10 +315,6 @@ static ServiceNativeEntry _ServiceNativeEntries[] = {
     ServiceIsolateNatives::OnStart },
   {"VMService_OnExit", 0,
     ServiceIsolateNatives::OnExit },
-  {"VMService_ListenStream", 1,
-    ServiceIsolateNatives::ListenStream },
-  {"VMService_CancelStream", 1,
-    ServiceIsolateNatives::CancelStream },
 };