VcsBase: Remove a few now unnecessary Q_OBJECT uses

Change-Id: I41d50e437b3bcfb964d2ef27541ea6a55855ec2f
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/vcsbase/vcsbaseclient.h

@@ -38,8 +38,6 @@ using CommandHandler = std::function<void(const CommandResult &)>;
 
 class VCSBASE_EXPORT VcsBaseClientImpl : public QObject
 {
-    Q_OBJECT
-
 public:
     explicit VcsBaseClientImpl(VcsBaseSettings *baseSettings);
     ~VcsBaseClientImpl() override = default;