add ip_fw_private.h to ng_ipfw.c, forgotten in previous commit;

comment out remove ip_fw.h from ng_bridge.c, as it seems unused.

MFC after:	1 month

sys/netgraph/ng_bridge.c

@@ -75,8 +75,9 @@
 #include <net/vnet.h>
 
 #include <netinet/in.h>
+#if 0	/* not used yet */
 #include <netinet/ip_fw.h>
-
+#endif
 #include <netgraph/ng_message.h>
 #include <netgraph/netgraph.h>
 #include <netgraph/ng_parse.h>

sys/netgraph/ng_ipfw.c

@@ -44,6 +44,7 @@
 #include <netinet/in_systm.h>
 #include <netinet/in_var.h>
 #include <netinet/ip_fw.h>
+#include <netinet/ipfw/ip_fw_private.h>
 #include <netinet/ip.h>
 #include <netinet/ip_var.h>