Because FALLOC_FL_PUNCH_HOLE flag must be ORed with FALLOC_FL_KEEP_SIZE
in fallocate, so we could remove the useless 'keep size' branch code which
will never be excuted in punch_hole.
Signed-off-by: NChao Yu <chao2.yu@samsung.com>
Signed-off-by: NFan Li <fanofcode.li@samsung.com>
[Jaegeuk Kim: remove an unnecessary parameter togather]
Signed-off-by: NJaegeuk Kim <jaegeuk.kim@samsung.com>