Code cleanup:
* Remove "FCurve/Driver Version fix" from help menu, was used for RNA changes during 2.5x. 
* Keep utility code in animsys_refactor.py, might still become useful according to Joshua. 

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk@61116 954f8c5b-7b00-dc11-b283-0030488c597c