gluon-core: remove now unused dnsmasq.d support

package/gluon-core/files/etc/init.d/gluon-core

-#!/bin/sh /etc/rc.common
-
-START=11
-
-
-start() {
-	mkdir -p /var/gluon/dnsmasq.d
-}

package/gluon-core/files/lib/gluon/upgrade/core/invariant/010-dnsmasq

+#!/bin/sh
+
+if [ -e /etc/dnsmasq.conf ]; then
+	sed -i -e '/^conf-dir=\/lib\/gluon\/dnsmasq\.d$/d' -e '/^conf-dir=\/var\/gluon\/dnsmasq\.d$/d' /etc/dnsmasq.conf
+fi

package/gluon-core/files/lib/gluon/upgrade/core/invariant/010-dnsmasq.d

-#!/bin/sh
-
-echo -e 'conf-dir=/lib/gluon/dnsmasq.d\nconf-dir=/var/gluon/dnsmasq.d' > /etc/dnsmasq.conf