block: get rid of redundant else

This is a pure code cleanup patch and doesn't change any functionality.
This removes the redundant else in the code which is not needed since
we are returning from function anyway.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

block/blk-mq-debugfs.c

@@ -779,7 +779,7 @@ static int blk_mq_debugfs_release(struct inode *inode, struct file *file)
 
 	if (attr->show)
 		return single_release(inode, file);
-	else
+
 	return seq_release(inode, file);
 }