Restore vanilla components

app/javascript/mastodon/features/ui/util/optional_motion.js

@@ -0,0 +1,5 @@
+import { reduceMotion } from '../../../initial_state';
+import ReducedMotion from './reduced_motion';
+import Motion from 'react-motion/lib/Motion';
+
+export default reduceMotion ? ReducedMotion : Motion;