Fix click range discrepancies in gifv (#14615)

app/javascript/mastodon/components/gifv.js

@@ -54,8 +54,6 @@ export default class GIFV extends React.PureComponent {
 
         <video
           src={src}
-          width={width}
-          height={height}
           role='button'
           tabIndex='0'
           aria-label={alt}