diff --git a/Source/Core/VideoCommon/OnScreenUI.h b/Source/Core/VideoCommon/OnScreenUI.h
index f741b0e485..b94681cf66 100644
--- a/Source/Core/VideoCommon/OnScreenUI.h
+++ b/Source/Core/VideoCommon/OnScreenUI.h
@@ -59,9 +59,6 @@ public:
   void SetMousePress(u32 button_mask);
 
 private:
-  // Destroys all ImGui GPU resources, must do before shutdown.
-  void ShutdownImGui();
-
   void DrawDebugText();
 
   // ImGui resources.