Add an 'and' to the sentence so that it looks better:

  WARNING: debugfs_remove(NULL) is safe and this check is probably not required
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>