[CodeQuality] Duplicated switch key result

[TomasVotruba]

 switch ($name) {
     case 'clearHeader':
         return $this->modifyHeader($node, 'remove');
     case 'clearAllHeaders':
-        return $this->modifyHeader($node, 'replace');
     case 'clearRawHeaders':
         return $this->modifyHeader($node, 'replace');
     case '...'
 }