Revert "Merge pull request #843 from sharelatex/ew-collabratec"

This reverts commit 223beab491d2f8dcf4c7285267fda355cfce3f05, reversing
changes made to a726537c4372641bfca0eb37fc130ca3a932d433.

services/web/test/acceptance/coffee/helpers/User.coffee

@@ -80,9 +80,6 @@ class User
 			update["features.#{key}"] = value
 		UserModel.update { _id: @id }, update, callback
 
-	setOverleafId: (overleaf_id, callback = (error) ->) ->
-		UserModel.update { _id: @id }, { 'overleaf.id': overleaf_id }, callback
-
 	logout: (callback = (error) ->) ->
 		@getCsrfToken (error) =>
 			return callback(error) if error?