refs #140, removed MACRO DBUS_ENUM_MARSHALLING, changed to template

discussed in https://dev.vatsim-germany.org/issues/140#change-864

src/blackmisc/blackmiscfreefunctions.h

@@ -198,23 +198,4 @@ namespace BlackMisc
 
 } // BlackMisc
 
-/*!
- * \brief   Macro to make a ENUMs DBus streamable.
- * \details Put this macro outside of any namespace, in the same header as the class defining the enumeration.
- * \param   ENUM The fully qualified name of the enumeration.
- * \hideinitializer
- * \ingroup Tuples
- */
-#define BLACK_DBUS_ENUM_MARSHALLING(ENUM)                                                  \
-    namespace BlackMisc                                                                    \
-    {                                                                                      \
-        inline const QDBusArgument &operator >>(const QDBusArgument &arg, ENUM &enumType)  \
-        {                                                                                  \
-            uint e;                                                                        \
-            arg >> e;                                                                      \
-            enumType = static_cast<ENUM>(e);                                               \
-            return arg;                                                                    \
-        };                                                                                 \
-    }
-
 #endif // guard