systemd-conf: Remove systemd-networkd append from gateway blueprint

We switched from a systemd-networkd and hostapd based SoftAP solution to
network-manager. Interface configuration as well as DHCP and DNS for the
WiFi clients are now handled by the network-manager hotspot feature.

Signed-off-by: Stefan Schmidt <stefan.schmidt@huawei.com>

meta-oniro-blueprints/conf/distro/oniro-linux-blueprint-gateway.conf

@@ -33,6 +33,3 @@ BBMASK = ""
 
 # We want hostapd service to start by default for this blueprint
 SYSTEMD_AUTO_ENABLE_pn-hostapd = "enable"
-
-# Enable iptables support in systemd-networkd for NAT
-PACKAGECONFIG_append_pn-systemd = " iptc"

meta-oniro-blueprints/recipes-core/systemd/files/80-wireless.network

-[Match]
-Name=wlan0
-
-[Network]
-Address=172.16.47.1/24
-DHCPServer=true
-IPMasquerade=true
-
-[DHCPServer]
-PoolOffset=100
-PoolSize=50
-EmitDNS=yes
-DNS=9.9.9.9 8.8.8.8

meta-oniro-blueprints/recipes-core/systemd/systemd-conf_%.bbappend

-FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
-
-SRC_URI_append = "file://80-wireless.network"
-
-do_install_append() {
-    install -D -m0644 ${WORKDIR}/80-wireless.network ${D}${systemd_unitdir}/network/
-}