Cleanup of unnecessary items in user scripts config. JSON

Fixes #5456

scripts/lua/modules/callback_definitions/host/remote_connection.lua

@@ -3,7 +3,6 @@
 --
 
 local user_scripts = require("user_scripts")
-local alert_severities = require "alert_severities"
 local host_alert_keys = require "host_alert_keys"
 
 local remote_connection = {
@@ -14,7 +13,6 @@ local remote_connection = {
    alert_id = host_alert_keys.host_alert_remote_connection,
 
    default_value = {
-      severity = alert_severities.notice,
    },
    
    gui = {