Code style cleanup to conform with newer recommendations.

Author: BusterNeece

src/PhpFunctionsScanner.php

@@ -4,7 +4,6 @@
 namespace Gettext\Scanner;
 
 use PhpParser\NodeTraverser;
-use PhpParser\NodeVisitor;
 use PhpParser\Parser;
 use PhpParser\ParserFactory;
 
@@ -27,9 +26,9 @@ public function scan(string $code, string $filename): array
             return [];
         }
 
-        $traverser = new NodeTraverser();
         $visitor = $this->createNodeVisitor($filename);
-        $traverser->addVisitor($visitor);
+
+        $traverser = new NodeTraverser($visitor);
         $traverser->traverse($ast);
 
         return $visitor->getFunctions();

src/PhpScanner.php

@@ -4,7 +4,6 @@
 namespace Gettext\Scanner;
 
 use Gettext\Translation;
-use Gettext\Translations;
 
 /**
  * Class to scan PHP files and get gettext translations