Remove now-unused dispatches

src/Resend.js

@@ -44,13 +44,6 @@ module.exports = {
             // XXX: temporary logging to try to diagnose
             // https://github.com/vector-im/riot-web/issues/3148
             console.log('Resend got send failure: ' + err.name + '('+err+')');
-            if (err.name === "UnknownDeviceError") {
-                dis.dispatch({
-                    action: 'unknown_device_error',
-                    err: err,
-                    room: room,
-                });
-            }
 
             dis.dispatch({
                 action: 'message_send_failed',
@@ -60,9 +53,5 @@ module.exports = {
     },
     removeFromQueue: function(event) {
         MatrixClientPeg.get().cancelPendingEvent(event);
-        dis.dispatch({
-            action: 'message_send_cancelled',
-            event: event,
-        });
     },
 };