remove: CURLOPT_ENCODING default

src/Builder.php

@@ -22,7 +22,6 @@ class Builder {
         'SSL_VERIFYPEER'        => false,
         'NOBODY'                => false,
         'HEADER'                => false,
-        'ENCODING'              => '',
     );
 
     /** @var array $packageOptions      Array with options that are not specific to cURL but are used by the package */