Remove object-fit polyfill for the old Microsoft Edge (#22693)

* chore: remove object-fit-images and its postcss packages

* chore: update postcss config

* chore: remove object-fit-image from extra_polyfills.js

* chore: remove object-fit property check from load_polyfills.js

package.json

@@ -81,13 +81,11 @@
     "mkdirp": "^1.0.4",
     "npmlog": "^7.0.1",
     "object-assign": "^4.1.1",
-    "object-fit-images": "^3.2.3",
     "object.values": "^1.1.6",
     "path-complete-extname": "^1.0.0",
     "pg": "^8.5.0",
     "postcss": "^8.4.20",
     "postcss-loader": "^3.0.0",
-    "postcss-object-fit-images": "^1.1.2",
     "promise.prototype.finally": "^3.1.4",
     "prop-types": "^15.8.1",
     "punycode": "^2.1.0",