mmc: core: Remove dead code
mmc: core: Remove dead code

bus_width is passed to the function and when 0 (MMC_BUS_WIDTH_1)
will cause the function to return. So in in the second test it
definitely is different from 0, and the third test is redundant.

Signed-off-by: Philippe De Swert <eee0bf2c88fa30b4cdd1374858c66bbbfd8732ff@gmail.com>
Reviewed-by: Namjae Jeon <4eaf47c25ead9675aad93689a157e819ffdaf8b3@gmail.com>
Acked-by: Philip Rakity <1eb54c8280fcf927734e562c2493f99735c99337@marvell.com>
Signed-off-by: Chris Ball <6ca7faee6ca9a094b1ee341f11b840a5608a8746@laptop.org>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs