diff --git a/src/polyfills.ts b/src/polyfills.ts
index 2d6db8f..e31e5c7 100644
--- a/src/polyfills.ts
+++ b/src/polyfills.ts
@@ -18,30 +18,6 @@
  * BROWSER POLYFILLS
  */
 
-/** IE9, IE10 and IE11 requires all of the following polyfills. **/
-// import 'core-js/es6/symbol';
-// import 'core-js/es6/object';
-// import 'core-js/es6/function';
-// import 'core-js/es6/parse-int';
-// import 'core-js/es6/parse-float';
-// import 'core-js/es6/number';
-// import 'core-js/es6/math';
-// import 'core-js/es6/string';
-// import 'core-js/es6/date';
-// import 'core-js/es6/array';
-// import 'core-js/es6/regexp';
-// import 'core-js/es6/map';
-// import 'core-js/es6/weak-map';
-// import 'core-js/es6/set';
-
-/** IE10 and IE11 requires the following for the Reflect API. */
-import 'core-js/es6/reflect';
-
-
-/** Evergreen browsers require these. **/
-// Used for reflect-metadata in JIT. If you use AOT (and only Angular decorators), you can remove.
-import 'core-js/es7/reflect';
-
 /**
  * By default, zone.js will patch all possible macroTask and DomEvents
  * user can disable parts of macroTask/DomEvents patch by setting following flags