1 files changed, 0 insertions, 21 deletions
diff --git a/app/assets/javascripts/commons/polyfills/custom_event.js b/app/assets/javascripts/commons/polyfills/custom_event.js
deleted file mode 100644
index 6b14eff6f05..00000000000
--- a/app/assets/javascripts/commons/polyfills/custom_event.js
+++ /dev/null
@@ -1,21 +0,0 @@
-/**
- * Polyfill: CustomEvent constructor
- * @what new CustomEvent()
- * @why Certain features, e.g. notes utilize this
- * @browsers Internet Explorer 11
- * @see https://caniuse.com/#feat=customevent
- */
-if (typeof window.CustomEvent !== 'function') {
-  window.CustomEvent = function CustomEvent(event, params) {
-    const evt = document.createEvent('CustomEvent');
-    const evtParams = {
-      bubbles: false,
-      cancelable: false,
-      detail: undefined,
-      ...params,
-    };
-    evt.initCustomEvent(event, evtParams.bubbles, evtParams.cancelable, evtParams.detail);
-    return evt;
-  };
-  window.CustomEvent.prototype = Event;
-}