chore: remove helpers.php (#2917)

* chore: remove helpers.php

* chore(docs): remove helpers.php reference from readme

README.md

@@ -92,7 +92,6 @@ themes/your-theme-name/   # → Root of your Sage based theme
 │   ├── Providers/        # → Service providers
 │   ├── View/             # → View models
 │   ├── filters.php       # → Theme filters
-│   ├── helpers.php       # → Helper functions
 │   └── setup.php         # → Theme setup
 ├── composer.json         # → Autoloading for `app/` files
 ├── public/               # → Built theme assets (never edit)

app/helpers.php

@@ -1,7 +0,0 @@
-<?php
-
-/**
- * Theme helpers.
- */
-
-namespace App;

functions.php

@@ -43,7 +43,7 @@ require $composer;
 |
 */
 
-collect(['helpers', 'setup', 'filters'])
+collect(['setup', 'filters'])
     ->each(function ($file) {
         if (! locate_template($file = "app/{$file}.php", true, true)) {
             wp_die(