diff --git a/src/slic3r/GUI/Gizmos/GLGizmoRotate.cpp b/src/slic3r/GUI/Gizmos/GLGizmoRotate.cpp
index 77366c633..c5060a88e 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoRotate.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoRotate.cpp
@@ -200,62 +200,10 @@ void GLGizmoRotate::on_render_for_picking() const
     glsafe(::glPopMatrix());
 }
 
-
-
-GLGizmoRotate3D::RotoptimzeWindow::RotoptimzeWindow(ImGuiWrapper *   imgui,
-                                                    State &          state,
-                                                    const Alignment &alignment)
-    : m_imgui{imgui}
-{
-    imgui->begin(_L("Rotation"), ImGuiWindowFlags_NoMove |
-                                   ImGuiWindowFlags_AlwaysAutoResize |
-                                   ImGuiWindowFlags_NoCollapse);
-
-    // adjust window position to avoid overlap the view toolbar
-    float win_h = ImGui::GetWindowHeight();
-    float x = alignment.x, y = alignment.y;
-    y = std::min(y, alignment.bottom_limit - win_h);
-    ImGui::SetWindowPos(ImVec2(x, y), ImGuiCond_Always);
-
-    static constexpr const char * button_txt = L("Optimize orientation");
-    static constexpr const char * slider_txt = L("Accuracy");
-
-    float button_width = imgui->calc_text_size(_(button_txt)).x;
-    ImGui::PushItemWidth(100.);
-    //if (imgui->button(_(button_txt))) {
-    if (ImGui::ArrowButton(_(button_txt).c_str(), ImGuiDir_Down)){
-        std::cout << "Blip" << std::endl;
-    }
-
-    ImGui::SliderFloat(_(slider_txt).c_str(), &state.accuracy, 0.01f, 1.f, "%.1f");
-
-    static const std::vector<std::string> options = {
-        _L("Least supports").ToStdString(),
-        _L("Suface quality").ToStdString()
-    };
-
-//    if (imgui->combo(_L("Choose method"), options, state.method) ) {
-//        std::cout << "method: " << state.method << std::endl;
-//    }
-
-
-}
-
-GLGizmoRotate3D::RotoptimzeWindow::~RotoptimzeWindow()
-{
-    m_imgui->end();
-}
-
 void GLGizmoRotate3D::on_render_input_window(float x, float y, float bottom_limit)
 {
     if (wxGetApp().preset_bundle->printers.get_edited_preset().printer_technology() != ptSLA)
         return;
-
-// TODO:
-
-//    m_rotoptimizewin_state.mobj = ?;
-//    RotoptimzeWindow popup{m_imgui, m_rotoptimizewin_state, {x, y, bottom_limit}};
-
 }
 
 void GLGizmoRotate::render_circle() const
diff --git a/src/slic3r/GUI/Gizmos/GLGizmoRotate.hpp b/src/slic3r/GUI/Gizmos/GLGizmoRotate.hpp
index c418c4b31..126c97b1d 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoRotate.hpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoRotate.hpp
@@ -136,37 +136,6 @@ protected:
     }
 
     void on_render_input_window(float x, float y, float bottom_limit) override;
-
-private:
-
-    class RotoptimzeWindow {
-        ImGuiWrapper *m_imgui = nullptr;
-
-    public:
-
-        struct State {
-            enum Metods { mMinSupportPoints, mLegacy };
-
-            float        accuracy = 1.f;
-            int          method   = mMinSupportPoints;
-            ModelObject *mobj     = nullptr;
-        };
-
-        struct Alignment { float x, y, bottom_limit; };
-
-        RotoptimzeWindow(ImGuiWrapper *   imgui,
-                         State &          state,
-                         const Alignment &bottom_limit);
-
-        ~RotoptimzeWindow();
-
-        RotoptimzeWindow(const RotoptimzeWindow&) = delete;
-        RotoptimzeWindow(RotoptimzeWindow &&) = delete;
-        RotoptimzeWindow& operator=(const RotoptimzeWindow &) = delete;
-        RotoptimzeWindow& operator=(RotoptimzeWindow &&) = delete;
-    };
-
-    RotoptimzeWindow::State m_rotoptimizewin_state = {};
 };
 
 } // namespace GUI