Remove obsolete port 2525

Author: ioannidesalex

bin/v-add-firewall-chain

@@ -49,7 +49,7 @@ is_system_enabled "$FIREWALL_SYSTEM" 'FIREWALL_SYSTEM'
 case $chain in
     SSH)        port=22; protocol=TCP ;;
     FTP)        port=21; protocol=TCP  ;;
-    MAIL)       port='25,465,587,2525,110,995,143,993'; protocol=TCP  ;;
+    MAIL)       port='25,465,587,110,995,143,993'; protocol=TCP  ;;
     DNS)        port=53; protocol=UDP  ;;
     WEB)        port='80,443'; protocol=TCP  ;;
     DB)         port='3306,5432'; protocol=TCP  ;;