Remove babel-loader shenanigans

code/addons/docs/src/preset.ts

@@ -28,8 +28,6 @@ async function webpack(
       typeof createCompiler
     >[0] */
 ) {
-  const resolvedBabelLoader = await options.presets.apply('babelLoaderRef');
-
   const { module = {} } = webpackConfig;
 
   // it will reuse babel options that are already in use in storybook

code/lib/builder-webpack5/src/presets/preview-preset.ts

@@ -29,7 +29,5 @@ export const babel = async (config: any, options: any) => ({
   ],
 });
 
-export const babelLoaderRef = () => require.resolve('babel-loader');
-
 export const previewMainTemplate = () =>
   require.resolve('@storybook/builder-webpack5/templates/preview.ejs');