[master] Fix issues reported by static analyse

Author: romainneutron

Command/XliffLintCommand.php

@@ -26,7 +26,6 @@
  */
 class XliffLintCommand extends Command
 {
-    private $parser;
     private $format;
     private $displayCorrectFiles;
     private $directoryIteratorProvider;
@@ -214,15 +213,6 @@ private function getStdin()
         return $inputs;
     }
 
-    private function getParser()
-    {
-        if (!$this->parser) {
-            $this->parser = new Parser();
-        }
-
-        return $this->parser;
-    }
-
     private function getDirectoryIterator($directory)
     {
         $default = function ($directory) {