vmbus: remove unused vmubs_sendpacket_pagebuffer_ctl

The function vmbus_sendpacket_pagebuffer_ctl was never used directly.
Just have vmbus_send_pagebuffer

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/hyperv/netvsc.c

@@ -775,12 +775,10 @@ static inline int netvsc_send_pkt(
 		if (packet->cp_partial)
 			pb += packet->rmsg_pgcnt;
 
-		ret = vmbus_sendpacket_pagebuffer_ctl(out_channel,
-						      pb, packet->page_buf_cnt,
-						      &nvmsg,
-						      sizeof(struct nvsp_message),
-						      req_id,
-						      VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
+		ret = vmbus_sendpacket_pagebuffer(out_channel,
+						  pb, packet->page_buf_cnt,
+						  &nvmsg, sizeof(nvmsg),
+						  req_id);
 	} else {
 		ret = vmbus_sendpacket_ctl(out_channel, &nvmsg,
 					   sizeof(struct nvsp_message),