fix lua event bug

src/framework/luascript/luaobject.h

@@ -77,7 +77,6 @@ private:
 
 template<typename... T>
 int LuaObject::callLuaField(const std::string& field, const T&... args) {
-    if(m_fieldsTableRef != -1) {
     // note that the field must be retrieved from this object lua value
     // to force using the __index metamethod of it's metatable
     // so cannot use LuaObject::getField here
@@ -93,7 +92,6 @@ int LuaObject::callLuaField(const std::string& field, const T&... args) {
     } else {
         g_lua.pop(2);
     }
-    }
     return 0;
 }