Core: cleanup.

*remove some garbage
*little bit moore const func
*fix process of args in vmap3_extractor

src/server/game/Scripting/MapScripts.cpp

@@ -364,9 +364,7 @@ void Map::ScriptsProcess()
                     break;
             }
         }
-        // Some information for error messages
-        std::string tableName = GetScriptsTableNameByType(step.script->type);
-        std::string commandName = GetScriptCommandName(step.script->command);
+
         switch (step.script->command)
         {
             case SCRIPT_COMMAND_TALK: