Revert "Merge pull request #2691 from runawaycoin/patch-2"
Revert "Merge pull request #2691 from runawaycoin/patch-2"

This reverts commit 58849485d8eeb94dc139408c93641b22731a49bf, reversing
changes made to 45314d5a4b3bd418c68a2988164f7b075bacfd47.

The form factory service has no reason to be a public service. It is used
only by the controller and we don't use public access in it anymore.

FriendsOfSymfony/FOSUserBundle,XWB/FOSUserBundle,XWB/FOSUserBundle