ipc: remove unreachable code in sem.c
ipc: remove unreachable code in sem.c

This line is unreachable, remove it.

[5c1e68b099950c134891f0b6e179498a8ebe9cf9@linux-foundation.org: remove unneeded initialisation of `err']
Signed-off-by: WANG Cong <b08afa93ec8eabe95bc97d12956ca699fa65834c@redhat.com>
Signed-off-by: Andrew Morton <5c1e68b099950c134891f0b6e179498a8ebe9cf9@linux-foundation.org>
Signed-off-by: Linus Torvalds <69652caca27c8b940640ad396ab71f93cacec34f@linux-foundation.org>

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