ext4: remove redundant check for first_not_zeroed in ext4_register_li_request
ext4: remove redundant check for first_not_zeroed in ext4_register_li_request

We have checked first_not_zeroed == ngroups already above, so remove
this redundant check.

sbi->s_li_request = NULL above is also removed since it is NULL
already.

Cc: Lukas Czerner <6c9141d0e2318b390a8a6bf8ecd9f819d16f05b4@redhat.com>
Signed-off-by: Tao Ma <85dcca6eaef7f88f8513274f73363a9b5feab3ec@taobao.com>
Signed-off-by: "Theodore Ts'o" <4ed386e0495d3e109932df055831d9ec2f824927@mit.edu>

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