staging: sm750fb: remove unused MB(x) and KB(x) macros

The MB(x) and KB(x) macros are not used and therefore they can be
removed

Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 files changed