Hygiene: Remove polyfills

They are not needed for any browser we support since we don't support
IE<9:

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach
https://developer.mozilla.org/en-US/docs/Web/API/console.log

Change-Id: I55629aca3646367694c23b2e3fca6f2db31a96f7
Merge "Hygiene: Remove polyfills"