udf: udf_get_block, inode_bmap - remove unneeded checks
udf: udf_get_block, inode_bmap - remove unneeded checks

block cannot be less than 0, because it's sector_t,
so remove unneeded checks

Signed-off-by: Marcin Slusarz <bc4bbf83189bf2aa3b4ae434673d425054bbfadd@gmail.com>
Signed-off-by: Jan Kara <596727c8a0ea4db3ba2ceceedccbacd3d7b371b8@suse.cz>

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