fix: Revert "refactor: Reduce bundle size (#1575)" (#1622)

This reverts commit 81dcbe294d.

platform/viewer/src/lib/localFileLoaders/fileLoaderService.js

@@ -1,7 +1,7 @@
+import cornerstoneWADOImageLoader from 'cornerstone-wado-image-loader';
 import FileLoader from './fileLoader';
 import PDFFileLoader from './pdfFileLoader';
 import DICOMFileLoader from './dicomFileLoader';
-import { getCornerstoneWADOImageLoader } from '../../utils/cornerstoneWADOImageLoader';
 
 class FileLoaderService extends FileLoader {
   fileType;
@@ -53,8 +53,7 @@ class FileLoaderService extends FileLoader {
     return result;
   }
 
-  async addFile(file) {
-    const cornerstoneWADOImageLoader = await getCornerstoneWADOImageLoader();
+  addFile(file) {
     return cornerstoneWADOImageLoader.wadouri.fileManager.add(file);
   }