TT#26264 Remove obsolete rc.d symlinks

We removed the init script, let's cleanup fully. Remove now obsolete
preinst maintscript. And remove unused and incorrectly named lintian
override file.

Change-Id: Ie08720a5c44d27f698de52f038608b47e5901ce7

debian/ngcp-kamailio.overrides

@@ -1 +0,0 @@
-ngcp-kamailio: postrm-contains-additional-updaterc.d-calls etc/init.d/kamailio-lb

debian/ngcp-kamailio.postinst

@@ -10,6 +10,10 @@ case "$1" in
         adduser --quiet --system --group --disabled-password \
                 --shell /bin/false --gecos "Kamailio" \
                 --home "$HOMEDIR" kamailio || true
+
+        # Remove obsolete rc.d links.
+        update-rc.d kamailio-lb remove
+        update-rc.d kamailio-proxy remove
         ;;
 
     abort-upgrade|abort-remove|abort-deconfigure)

debian/ngcp-kamailio.preinst

@@ -1,27 +0,0 @@
-#!/bin/sh
-
-set -e
-
-case "$1" in
-    install|upgrade)
-        if [ -f /etc/default/kamailio-lb ]; then
-            sed -e 's/RUN_KAMAILIO=yes/RUN_KAMAILIO=no/' \
-                -i /etc/default/kamailio-lb
-        fi
-        if [ -f /etc/default/kamailio-proxy ]; then
-            sed -e 's/RUN_KAMAILIO=yes/RUN_KAMAILIO=no/' \
-                -i /etc/default/kamailio-proxy
-        fi
-        echo "kamailio disabled. Run ngcpcfg apply to enable."
-        ;;
-
-    abort-upgrade)
-        ;;
-
-    *)
-        echo "preinst called with unknown argument \`$1'" >&2
-        exit 1
-        ;;
-esac
-
-#DEBHELPER#