Lua: Move lua plugins into normal plugin folder

Change-Id: I14ab0bb755a4279bc255673596fe084cd556433c
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/lua/luaplugin.cpp

@@ -106,10 +106,7 @@ public:
 
     bool delayedInitialize() final
     {
-        scanForPlugins(transform(PluginManager::pluginPaths(), [](const FilePath &path) {
-            return path / "lua-plugins";
-        }));
-
+        scanForPlugins(PluginManager::pluginPaths());
         return true;
     }