Remove retry_count.

sys/dev/firewire/firewire.c

@@ -1612,7 +1612,6 @@ fw_bus_explore_callback(struct fw_xfer *xfer)
 	fw_bus_explore(fc);
 	return;
 errnode:
-	fc->retry_count++;
 	if (fc->ongodev != NULL) {
 		fc->ongodev->status = FWDEVINVAL;
 		/* Invalidate ROM */

sys/dev/firewire/firewirereg.h

@@ -110,9 +110,7 @@ struct firewire_comm{
 	u_int irm;
 	u_int max_node;
 	u_int max_hop;
-	u_int max_asyretry;
 #define FWPHYASYST (1 << 0)
-	u_int retry_count;
 	uint32_t ongobus:10,
 		  ongonode:6,
 		  ongoaddr:16;