Remove object-fit polyfill for the old Microsoft Edge

Port d68c12648c to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/extra_polyfills.js

@@ -1,6 +1,3 @@
 import 'abortcontroller-polyfill/dist/abortcontroller-polyfill-only';
 import 'intersection-observer';
 import 'requestidlecallback';
-import objectFitImages  from 'object-fit-images';
-
-objectFitImages();