Silence bluebird warnings

src/components/structures/MatrixChat.js

@@ -48,6 +48,10 @@ import SettingsStore, {SettingLevel} from "../../settings/SettingsStore";
 import { startAnyRegistrationFlow } from "../../Registration.js";
 import { messageForSyncError } from '../../utils/ErrorUtils';
 
+// Disable warnings for now: we use deprecated bluebird functions
+// and need to migrate, but they spam the console with warnings.
+Promise.config({warnings: false});
+
 /** constants for MatrixChat.state.view */
 const VIEWS = {
     // a special initial state which is only used at startup, while we are