Move call listener out of MatrixChat

and into callhandler

src/components/structures/MatrixChat.tsx

@@ -1353,18 +1353,6 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
             });
         });
 
-        if (SettingsStore.getValue(UIFeature.Voip)) {
-            cli.on('Call.incoming', function(call) {
-                // we dispatch this synchronously to make sure that the event
-                // handlers on the call are set up immediately (so that if
-                // we get an immediate hangup, we don't get a stuck call)
-                dis.dispatch({
-                    action: 'incoming_call',
-                    call: call,
-                }, true);
-            });
-        }
-
         cli.on('Session.logged_out', function(errObj) {
             if (Lifecycle.isLoggingOut()) return;