unused abstract class AbstractTakeProgress

Change-Id: I8fdcd03af9ecb89508e2d49e4c7873d1d2cbc752
Reviewed-on: https://gerrit.libreoffice.org/64216
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

include/svx/svxdlg.hxx

@@ -101,12 +101,6 @@ public:
     virtual SfxBindings& GetBindings() = 0;
 };
 
-class AbstractTakeProgress :public VclAbstractRefreshableDialog
-{
-protected:
-    virtual ~AbstractTakeProgress() override = default;
-};
-
 class AbstractTitleDialog :public VclAbstractDialog
 {
 protected: