Remove unused webpack config

webpack.mix.js

@@ -1,15 +0,0 @@
-const mix = require('laravel-mix');
-mix.options({
-    terser: {
-        terserOptions: {
-            compress: {
-                drop_console: true,
-            },
-        },
-    },
-});
-mix.setPublicPath('public')
-
-mix.js('resources/js/app.js', '')
-mix.sass('resources/sass/app.scss', '')
-mix.version()