Restore manual naming of static leases using comments for MKSCAN + cleanups

front/plugins/mikrotik_scan/config.json

@@ -2,7 +2,7 @@
   "code_name": "mikrotik_scan",
   "unique_prefix": "MTSCAN",
   "plugin_type": "device_scanner",
-  "execution_order" : "Layer_4",
+  "execution_order" : "Layer_1",
   "enabled": true,
   "data_source": "script",
   "mapped_to_table": "CurrentScan",
@@ -27,12 +27,6 @@
     }
   ],
   "params": [
-    {
-      "name": "ips",
-      "type": "sql",
-      "value": "SELECT devLastIP from DEVICES order by devMac",
-      "timeoutMultiplier": true
-    },
     {
       "name": "mt_host",
       "type": "setting",