Revert part of a change that I made several months ago that was causing problems with texture shadows without edge lists.
Revert part of a change that I made several months ago that was causing problems with texture shadows without edge lists.

--HG--
branch : v1-8

jhu-lcsr-forks/ogre,jhu-lcsr-forks/ogre,jhu-lcsr-forks/ogre,vancepym/ogre,nezticle/ogre,vancepym/ogre,vancepym/ogre,jhu-lcsr-forks/ogre,nezticle/ogre,largerussiangames/ogre,largerussiangames/ogre,jhu-lcsr-forks/ogre,vancepym/ogre,largerussiangames/ogre,largerussiangames/ogre,vancepym/ogre,nezticle/ogre,nezticle/ogre