[scripts] revert back to using networkmanager on E17

If we want another frontend app rather than nm-applet, just do it

scripts/remaster_generic_inner_chroot_script_after.sh

@@ -117,9 +117,7 @@ if [ "$1" = "lxde" ]; then
 	sed -i 's/pcmanfm -d/pcmanfm -d --desktop/g' /etc/xdg/lxsession/LXDE/autostart
 	setup_cpufrequtils
 elif [ "$1" = "e17" ]; then
-	# We prefer using connman on E17 now
-	rc-update del NetworkManager default
-	rc-update add connman default
+	setup_networkmanager
 	# Fix ~/.dmrc to have it load E17
         echo "[Desktop]" > /etc/skel/.dmrc
         echo "Session=enlightenment" >> /etc/skel/.dmrc