--- a/gfx/2d/Polygon.h
+++ b/gfx/2d/Polygon.h
@@ -26,31 +26,16 @@ public:
   }
 
   explicit BasePolygon3D(const nsTArray<Point3DTyped<Units>>& aPoints)
     : mPoints(aPoints)
   {
     CalculateNormal();
   }
 
-  BasePolygon3D(const BasePolygon3D& aOther)
-    : mPoints(aOther.mPoints)
-    , mNormal(aOther.mNormal) {}
-
-  BasePolygon3D(BasePolygon3D && aOther)
-    : mPoints(std::move(aOther.mPoints))
-    , mNormal(std::move(aOther.mNormal)) {}
-
-  BasePolygon3D& operator=(BasePolygon3D && aOther)
-  {
-    mPoints = std::move(aOther.mPoints);
-    mNormal = std::move(aOther.mNormal);
-    return *this;
-  }
-
   const Point3DTyped<Units>& GetNormal() const
   {
     return mNormal;
   }
 
   const nsTArray<Point3D>& GetPoints() const
   {
     return mPoints;