Remove typo comment

Author: nicolaasuni

composer.json

@@ -1,6 +1,6 @@
 {
   "name": "tecnickcom/tcpdf",
-  "version": "6.2.20",
+  "version": "6.2.21",
   "homepage": "http://www.tcpdf.org/",
   "type": "library",
   "description": "TCPDF is a PHP class for generating PDF documents and barcodes.",

include/tcpdf_static.php

@@ -55,7 +55,7 @@ class TCPDF_STATIC {
 	 * Current TCPDF version.
 	 * @private static
 	 */
-	private static $tcpdf_version = '6.2.20';
+	private static $tcpdf_version = '6.2.21';
 
 	/**
 	 * String alias for total number of pages.
@@ -1774,39 +1774,6 @@ public static function getVectorsAngle($x1, $y1, $x2, $y2) {
 		return $angle;
 	}
 
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-// ====================================================================================================================
-// REIMPLEMENTED
-// ====================================================================================================================
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 	/**
 	 * Split string by a regular expression.
 	 * This is a wrapper for the preg_split function to avoid the bug: https://bugs.php.net/bug.php?id=45850

tcpdf.php

@@ -1,7 +1,7 @@
 <?php
 //============================================================+
 // File name   : tcpdf.php
-// Version     : 6.2.20
+// Version     : 6.2.21
 // Begin       : 2002-08-03
 // Last Update : 2018-09-14
 // Author      : Nicola Asuni - Tecnick.com LTD - www.tecnick.com - info@tecnick.com
@@ -104,7 +104,7 @@
  * Tools to encode your unicode fonts are on fonts/utils directory.</p>
  * @package com.tecnick.tcpdf
  * @author Nicola Asuni
- * @version 6.2.20
+ * @version 6.2.21
  */
 
 // TCPDF configuration
@@ -128,7 +128,7 @@
  * TCPDF project (http://www.tcpdf.org) has been originally derived in 2002 from the Public Domain FPDF class by Olivier Plathey (http://www.fpdf.org), but now is almost entirely rewritten.<br>
  * @package com.tecnick.tcpdf
  * @brief PHP class for generating PDF documents without requiring external extensions.
- * @version 6.2.20
+ * @version 6.2.21
  * @author Nicola Asuni - info@tecnick.com
  * @IgnoreAnnotation("protected")
  * @IgnoreAnnotation("public")