fix: remove laravel-mix and webpack file

.env.example

@@ -52,9 +52,6 @@ PUSHER_PORT=443
 PUSHER_SCHEME=https
 PUSHER_APP_CLUSTER=mt1
 
-MIX_PUSHER_APP_KEY="${PUSHER_APP_KEY}"
-MIX_PUSHER_APP_CLUSTER="${PUSHER_APP_CLUSTER}"
-
 SANCTUM_STATEFUL_DOMAINS="localhost,localhost:3000,localhost:8000,127.0.0.1,127.0.0.1:8000,::1"
 
 DEFAULT_ROLE_SLUG=user

webpack.mix.js

@@ -1,17 +0,0 @@
-const mix = require('laravel-mix');
-
-/*
- |--------------------------------------------------------------------------
- | Mix Asset Management
- |--------------------------------------------------------------------------
- |
- | Mix provides a clean, fluent API for defining some Webpack build steps
- | for your Laravel applications. By default, we are compiling the CSS
- | file for the application as well as bundling up all the JS files.
- |
- */
-
-mix.js('resources/js/app.js', 'public/js')
-    .postCss('resources/css/app.css', 'public/css', [
-        //
-    ]);