mmc-utils: drop unused header

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Chris Ball <chris@printf.net>

mmc.h

@@ -17,7 +17,6 @@
  * those modifications are Copyright (c) 2016 SanDisk Corp.
  */
 
-#include <asm-generic/int-ll64.h>
 #include <linux/mmc/ioctl.h>
 
 #ifndef offsetof