Fixes a bug in `controllers/insert-hyperlink` where `addEventListener` was called with different (anonymous) functions than the matching `removeEventListener` calls.
This is to help with the migration to Ember CLI. In the current running
version of Discourse everything should be the same as before, just with
a few extra files that are not used. However, using Ember CLI this can
be installed as an Ember addon.
Co-Authored-By: Jarek Radosz <jradosz@gmail.com>
