Compilation app.js laravel - laravel

Question

I'm having a problem with laravel 5.4 I'm trying to put a personal js library and I'm not getting it
I'm also not able to remove the vue.js
I think it's in the compilation of the lavender mix
my files
Package.json
{
"private": true,
"scripts": {
"dev": "npm run development",
"development": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
"watch": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --watch --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
"watch-poll": "npm run watch -- --watch-poll",
"hot": "cross-env NODE_ENV=development node_modules/webpack-dev-server/bin/webpack-dev-server.js --inline --hot --config=node_modules/laravel-mix/setup/webpack.config.js",
"prod": "npm run production",
"production": "cross-env NODE_ENV=production node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js"
},
"devDependencies": {
"axios": "^0.15.3",
"bootstrap-sass": "^3.3.7",
"cross-env": "^3.2.3",
"jquery": "^3.1.1",
"laravel-mix": "0.*",
"lodash": "^4.17.4"
}
}
assests/js/app.js
require('./bootstrap');
webpack.mix.js
const { mix } = require('laravel-mix');
mix.js('resources/assets/js/app.js', 'public/js')
.sass('resources/assets/sass/app.scss', 'public/css');
.js('resources/assets/js/cidades-estados-1-4.js', 'public/js');
I tried an npm update and then an npm run dev or prod but it does not update, it is still with the vue.js that I removed
My app.js is giant