gluon-setup-mode, gluon-status-page-api: remove references to rpcd

rpcd is not included in our images anymore since switching to gluon-web, so
we don't need to disable it anymore.

package/gluon-setup-mode/files/lib/gluon/setup-mode/rc.d/S12rpcd

-#!/bin/sh /etc/rc.common
-
-if [ -x /etc/init.d/rpcd ]; then
-	. /etc/init.d/rpcd
-fi

package/gluon-status-page-api/files/lib/gluon/upgrade/500-status-page-api

@@ -11,7 +11,3 @@ uci -q batch <<-EOF
 
 	set uhttpd.main.max_requests=32
 EOF
-
-if [ -x /etc/init.d/rpcd ]; then
-	/etc/init.d/rpcd disable
-fi