Revert "Update escpos-php"

This reverts commit 2f42a226d0.

htdocs/includes/mike42/escpos-php/autoload.php

@@ -1,26 +0,0 @@
-<?php
-/**
- * Users who do not have 'composer' to manage dependencies, include this
- * file to provide auto-loading of the classes in this library. 
- */
-spl_autoload_register ( function ($class) {
-	/*
-	 * PSR-4 autoloader, based on PHP Framework Interop Group snippet (Under MIT License.)
-	 * https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-4-autoloader-examples.md
-	 */
-	$prefix = "Mike42\\";
-	$base_dir = __DIR__ . "/src/Mike42/";
-	
-	/* Only continue for classes in this namespace */
-	$len = strlen ( $prefix );
-	if (strncmp ( $prefix, $class, $len ) !== 0) {
-		return;
-	}
-	
-	/* Require the file if it exists */
-	$relative_class = substr ( $class, $len );
-	$file = $base_dir . str_replace ( '\\', '/', $relative_class ) . '.php';
-	if (file_exists ( $file )) {
-		require $file;
-	}
-} );