Removed polyfills

Author: ELFoglalt

package-lock.json

@@ -20,7 +20,6 @@
   },
   "dependencies": {
     "css-element-queries": "^1.0.2",
-    "intersection-observer": "^0.5.0",
     "lodash.debounce": "^4.0.8"
   },
   "devDependencies": {

package.json

@@ -1,7 +1,5 @@
 import ResizeSensor from 'resizeSensor'
 import lodashDebounce from 'lodash.debounce'
-require('./findPolyfill');
-require('intersection-observer');
 
 const { debounce = lodashDebounce } = lodashDebounce;
 const defaultDelay = 150;