Cleanup attach-bridge iptables rule

weave

@@ -698,6 +698,7 @@ destroy_bridge() {
     run_iptables -t filter -D FORWARD -i $BRIDGE -o $BRIDGE -j ACCEPT 2>/dev/null || true
     run_iptables -t nat -F WEAVE >/dev/null 2>&1 || true
     run_iptables -t nat -D POSTROUTING -j WEAVE >/dev/null 2>&1 || true
+    run_iptables -t nat -D POSTROUTING -o $BRIDGE -j ACCEPT >/dev/null 2>&1 || true
     run_iptables -t nat -X WEAVE >/dev/null 2>&1 || true
 }