sys_tz is already declared extern struct in include/linux/time.h
Signed-off-by: NFabian Frederick <fabf@skynet.be>
Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>