修复 salsprep 不能正确被 webpack 打包的问题

build/webpack.js

@@ -1,5 +1,4 @@
 /* eslint-disable import/no-extraneous-dependencies */
-const path = require('path');
 const webpack = require('webpack');
 const FriendlyErrorsPlugin = require('friendly-errors-webpack-plugin');
 const { root } = require('./utils');
@@ -21,9 +20,6 @@ const build = async (type) => {
             new FriendlyErrorsPlugin({
                 clearConsole: false,
             }),
-            new webpack.ProvidePlugin({
-                saslprep: path.resolve(__dirname, 'node_modules/saslprep/index.js'),
-            }),
         ],
     };
     const compiler = webpack(config);