block: remove hd_struct_kill

The function has a single caller, so just open code it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

block/blk.h

@@ -413,11 +413,6 @@ static inline void hd_struct_put(struct hd_struct *part)
 	percpu_ref_put(&part->ref);
 }
 
-static inline void hd_struct_kill(struct hd_struct *part)
-{
-	percpu_ref_kill(&part->ref);
-}
-
 static inline void hd_free_part(struct hd_struct *part)
 {
 	free_part_stats(part);

block/partitions/core.c

@@ -321,7 +321,7 @@ void delete_partition(struct gendisk *disk, struct hd_struct *part)
 	 * "in-use" until we really free the gendisk.
 	 */
 	blk_invalidate_devt(part_devt(part));
-	hd_struct_kill(part);
+	percpu_ref_kill(&part->ref);
 }
 
 static ssize_t whole_disk_show(struct device *dev,