Use only ACLs to control network interfaces on Dashboard

net/config

@@ -1,3 +1,2 @@
 hosts_file=/etc/hosts
 def_netmask=255.255.255.0
-sysinfo=1

net/config.info

@@ -3,4 +3,3 @@ ipnodes_file=File listing IPv6 hosts and addresses,0
 def_netmask=Default netmask,0
 def_broadcast=Default broadcast address,0
 def_mtu=Default MTU,0
-sysinfo=Show available network interfaces on Dashboard,1,1-Yes,0-No

net/system_info.pl

@@ -4,7 +4,7 @@ sub list_system_info
 {
     my $can = &foreign_available($module_name) && $access{'sysinfo'};
 
-    if ((length($config{'sysinfo'}) && !$config{'sysinfo'}) || !$can) {
+    if (!$can) {
         return ();
     }
     my %net_text = &load_language($module_name);