Fixed coding standards violations

Author: Graham Wharton

lib/internal/Magento/Framework/Mail/Message.php

@@ -156,26 +156,6 @@ public function getRawMessage()
         return $this->zendMessage->toString();
     }
 
-    /**
-     * Create HTML mime message from the string.
-     *
-     * @param string $htmlBody
-     * @return \Zend\Mime\Message
-     *
-     * @deprecated All emails that Magento sends should be mime encoded. Therefore
-     * use generic function createMimeFromString
-     * @see createMimeFromString()
-     */
-    private function createHtmlMimeFromString($htmlBody)
-    {
-        $htmlPart = new Part($htmlBody);
-        $htmlPart->setCharset($this->zendMessage->getEncoding());
-        $htmlPart->setType(Mime::TYPE_HTML);
-        $mimeMessage = new \Zend\Mime\Message();
-        $mimeMessage->addPart($htmlPart);
-        return $mimeMessage;
-    }
-
     /**
      * Create mime message from the string.
      *

lib/internal/Magento/Framework/Mail/Test/Unit/MessageTest.php

@@ -5,6 +5,9 @@
  */
 namespace Magento\Framework\Mail\Test\Unit;
 
+/**
+ * test Magento\Framework\Mail\Message
+ */
 class MessageTest extends \PHPUnit\Framework\TestCase
 {
     /**