How to automatically remove compiled styles after they're versioned in Elixir?

Question

I use Laravel Elixir to merge and minify stylesheets. The problem is when I use versioning, it creates two identical copies:

#1

public/build/css/layout.css.map
public/build/css/layout-b94a608888.css

#2

public/css/layout.css
public/css/layout.css.map

How do I remove #2 copy automatically using Gulp?

Answer 1

This question was already asked here: Delete intermediary files after elixir merge

They recommend using npm del library and the code looks like this:

var elixir = require('laravel-elixir');
var del = require('del');

elixir.extend('remove', function(path) {
    new elixir.Task('remove', function() {
        del(path);
    });
});

elixir(function(mix) {
    mix.remove([ 'public/css', 'public/js' ]);
});