Merge branch 'remove-author-from-email' into 'master'

Revert "Make sure notify email always has author info."

This reverts commit 303f79f8.

See merge request !2103

app/views/notify/_note_message.html.haml

-%div
-  "#{link_to @note.author_name, user_url(@note.author)} wrote:"
 %div
   = markdown(@note.note, pipeline: :email)