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.c

@@ -22,6 +22,8 @@
  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#if 0
+
 //=========================
 // Code to set DHCP options
 //=========================
@@ -597,3 +599,5 @@ DumpDHCP (const ETH_HEADER *eth,
 }
 
 #endif /* DBG */
+
+#endif