openvn: remove service control from pages

This doesn't work out at all for the fact that the control picks
up the first instance it finds, either client or server, but not
clearly stating so.  That's why there is a status page with all
the services for clients and servers...

(cherry picked from commit 7b17ac34)

src/www/status_openvpn.php

@@ -67,8 +67,6 @@ function kill_client($port, $remipp)
     return $killed;
 }
 
-$service_hook = 'openvpn';
-
 if ($_SERVER['REQUEST_METHOD'] === 'GET') {
   $vpnid = 0;
 } elseif ($_SERVER['REQUEST_METHOD'] === 'POST') {

src/www/vpn_openvpn_client.php

@@ -33,8 +33,6 @@ require_once("services.inc");
 require_once("interfaces.inc");
 require_once('pfsense-utils.inc');
 
-$service_hook = 'openvpn';
-
 if (!isset($config['openvpn']['openvpn-client'])) {
     $config['openvpn']['openvpn-client'] = array();
 }

src/www/vpn_openvpn_csc.php

@@ -33,8 +33,6 @@ require_once("services.inc");
 require_once("interfaces.inc");
 require_once('pfsense-utils.inc');
 
-$service_hook = 'openvpn';
-
 // define all fields used in this form
 $all_form_fields = "custom_options,disable,common_name,block,description
     ,tunnel_network,local_network,local_networkv6,remote_network

src/www/vpn_openvpn_export.php

@@ -37,8 +37,6 @@ require_once("openvpn-client-export.inc");
 
 global $current_openvpn_version, $current_openvpn_version_rev;
 
-$service_hook = 'openvpn';
-
 $ras_server = array();
 if (isset($config['openvpn']['openvpn-server'])) {
     // collect info

src/www/vpn_openvpn_export_shared.php

@@ -35,8 +35,6 @@ require_once("pfsense-utils.inc");
 require_once("interfaces.inc");
 require_once("openvpn-client-export.inc");
 
-$service_hook = 'openvpn';
-
 $ras_server = array();
 if (isset($config['openvpn']['openvpn-server'])) {
     foreach ($config['openvpn']['openvpn-server'] as $sindex => $server) {

src/www/vpn_openvpn_server.php

@@ -411,8 +411,6 @@ if ($_SERVER['REQUEST_METHOD'] === 'GET') {
     }
 }
 
-$service_hook = 'openvpn';
-
 include("head.inc");
 
 $main_buttons = array(