io_uring: remove unused rsrc_put_fn

rsrc_put_fn is declared but never used, remove it.
Signed-off-by: Anuj Gupta <anuj20.g@samsung.com>
Link: https://lore.kernel.org/r/20240902062134.136387-3-anuj20.g@samsung.comSigned-off-by: Jens Axboe <axboe@kernel.dk>

io_uring/rsrc.h

@@ -22,8 +22,6 @@ struct io_rsrc_put {
 	};
 };
 
-typedef void (rsrc_put_fn)(struct io_ring_ctx *ctx, struct io_rsrc_put *prsrc);
-
 struct io_rsrc_data {
 	struct io_ring_ctx		*ctx;