Dike out some cruft in Windows tap that we will never use, like TUN mode, DHCP masq, ARP emulation, NDP emulation, and related. We operate only in L2 mode. All tap, no tun.

vsprojects/TapDriver/dhcp.h

@@ -22,6 +22,8 @@
  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#if 0
+
 #pragma pack(1)
 
 //===================================================
@@ -162,3 +164,5 @@ DumpDHCP (const ETH_HEADER *eth,
 	  const int optlen);
 
 #endif
+
+#endif