Simplify

src/freedombone-controlpanel

@@ -1306,11 +1306,6 @@ Enter a static local IP address for this system.\n\nIt will typically be 192.168
            if [[ "$NEW_STATIC_IP" != *"."* ]]; then
                return
            fi
-           if grep -q 'iface eth0 inet static' /etc/network/interfaces; then
-               if [[ "$NEW_STATIC_IP" != "$STATIC_IP" ]]; then
-                   sed -i "s|${STATIC_IP}|${NEW_STATIC_IP}|g" /etc/network/interfaces
-               fi
-           fi
            ;;
     esac
 
@@ -1326,12 +1321,6 @@ Enter a static local IP address for this system.\n\nIt will typically be 192.168
            if [[ "$NEW_STATIC_GATEWAY" != *"."* ]]; then
                return
            fi
-           if grep -q 'iface eth0 inet static' /etc/network/interfaces; then
-               if [[ "$NEW_STATIC_GATEWAY" != "$STATIC_GATEWAY" ]]; then
-                   sed -i "s|${STATIC_GATEWAY}|${NEW_STATIC_GATEWAY}|g" /etc/network/interfaces
-               fi
-               return
-           fi
            ;;
     esac