rm virtual

GUI/Model/Mask/MasksSet.h

@@ -28,7 +28,7 @@ class RegionOfInterestItem;
 class MasksSet {
 public:
     MasksSet();
-    virtual ~MasksSet();
+    ~MasksSet();
 
     const std::vector<MaskItem*>& maskItems() const { return m_mask_items.shared(); }