Removed CSS lexer code that was commented out.
Removed CSS lexer code that was commented out.

ttasanen/oga,jeffreybaird/oga,dfockler/oga,ttasanen/oga,jeffreybaird/oga,ttasanen/oga,jeffreybaird/oga,YorickPeterse/oga,altmetric/oga,jeffreybaird/oga,YorickPeterse/oga,jeffreybaird/oga,ttasanen/oga,dfockler/oga,altmetric/oga,altmetric/oga,YorickPeterse/oga,YorickPeterse/oga,dfockler/oga,ttasanen/oga,dfockler/oga,YorickPeterse/oga,altmetric/oga,altmetric/oga,dfockler/oga