Removed unused variable in a lexer benchmark.
Removed unused variable in a lexer benchmark.

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