xsk: Get rid of unused entry in struct xdp_buff_xsk

Get rid of the unused entry "unaligned" in struct xdp_buff_xsk.
Signed-off-by: NMagnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210922075613.12186-2-magnus.karlsson@gmail.com

include/net/xsk_buff_pool.h

@@ -23,7 +23,6 @@ struct xdp_buff_xsk {
 	dma_addr_t dma;
 	dma_addr_t frame_dma;
 	struct xsk_buff_pool *pool;
-	bool unaligned;
 	u64 orig_addr;
 	struct list_head free_list_node;
 };