rm old ext api plugin

Author: aruniverse

packages/react-scripts/config/webpack.config.js

@@ -47,7 +47,6 @@ const {
   BanBackendImportsPlugin,
   CopyBentleyStaticResourcesPlugin,
   CopyStaticAssetsPlugin,
-  IModeljsLibraryExportsPlugin
 } = require('@itwin/core-webpack-tools');
 
 // iModel.js change to support using the fast-sass-loader instead of sass-loader.
@@ -744,10 +743,6 @@ module.exports = function (webpackEnv) {
       ].filter(Boolean),
     },
     plugins: [
-      // NOTE: iModel.js specific plugin to allow exposing iModel.js shared libraries
-      // into the global scope for use within iModel.js Extensions.
-      new IModeljsLibraryExportsPlugin(),
-
       // NOTE: iModel.js specific plugin to copy a set of static resources from the node_modules
       // directory of each dependent package into the 'build/public' directory.
       // Used for resources such as locales, which are defined by each consuming package.