Fix CUDA build error after last commit, and remove some comments.

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@53530 954f8c5b-7b00-dc11-b283-0030488c597c
correct invalid filter value being use for icon scaling.


git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@53531 954f8c5b-7b00-dc11-b283-0030488c597c