Configuration GUIDs are not required any more

This reverts commit 1cb6ca5adb.

lib/EAPBase/include/Config.h

@@ -550,7 +550,6 @@ namespace eap
         /// @}
 
     public:
-        GUID m_connection_id;                           ///< Unique connection ID
         std::vector<eap::config_provider> m_providers;  ///< Array of provider configurations
     };
 }