Removed argument not used (#187)

Author: Nyholm

Resources/config/services.xml

@@ -62,9 +62,7 @@
         <service id="Http\Client\HttpClient" alias="httplug.client" public="false" />
 
         <!-- ClientFactories -->
-        <service id="httplug.factory.auto" class="Http\HttplugBundle\ClientFactory\AutoDiscoveryFactory" public="false">
-            <argument type="service" id="httplug.message_factory"/>
-        </service>
+        <service id="httplug.factory.auto" class="Http\HttplugBundle\ClientFactory\AutoDiscoveryFactory" public="false" />
         <service id="httplug.factory.buzz" class="Http\HttplugBundle\ClientFactory\BuzzFactory" public="false">
             <argument type="service" id="httplug.message_factory"/>
         </service>