xfs: return is not a function

return is not a function.  "return(EIO);" is silly;
"return (EIO);" moreso.  return is not a function.
Nuke the pointless parens.

[dchinner: catch a couple of extra cases in xfs_attr_list.c,
xfs_acl.c and xfs_linux.h.]

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h
index 825249d..f59b966 100644
--- a/fs/xfs/xfs_linux.h
+++ b/fs/xfs/xfs_linux.h
@@ -331,7 +331,7 @@
 {
 	x += y - 1;
 	do_div(x, y);
-	return(x * y);
+	return x * y;
 }
 
 static inline __uint64_t howmany_64(__uint64_t x, __uint32_t y)