add todo comment

src/server/service/file-uploader/index.js

@@ -14,7 +14,9 @@ const envToModuleMappings = {
 class FileUploadServiceFactory {
 
   initializeUploader(crowi) {
+    // temporarily use envToModuleMappings [remove in GW-4136]
     const fileUplodeTypeInConfig = envToModuleMappings[crowi.configManager.getConfig('crowi', 'app:fileUploadType')];
+
     const method = envToModuleMappings[process.env.FILE_UPLOAD] || fileUplodeTypeInConfig || 'ppp';
     const modulePath = `./${method}`;
     this.uploader = require(modulePath)(crowi);