DragDrop: Removed IsDragDropActive() (introduced a few days ago, revert 06bea369c0) as our use case doesn't need it anymore. Will add it if there is a real need.

imgui.cpp

@@ -11468,12 +11468,6 @@ void ImGui::EndDragDropTarget()
     IM_ASSERT(g.DragDropActive);
 }
 
-bool ImGui::IsDragDropActive()
-{
-    ImGuiContext& g = *GImGui;
-    return g.DragDropActive;
-}
-
 //-----------------------------------------------------------------------------
 // PLATFORM DEPENDENT HELPERS
 //-----------------------------------------------------------------------------

imgui.h

@@ -434,7 +434,6 @@ namespace ImGui
     IMGUI_API bool          BeginDragDropTarget();                                                                  // call after submitting an item that may receive an item. If this returns true, you can call AcceptDragDropPayload() + EndDragDropTarget()
     IMGUI_API const ImGuiPayload* AcceptDragDropPayload(const char* type, ImGuiDragDropFlags flags = 0);            // accept contents of a given type. If ImGuiDragDropFlags_AcceptBeforeDelivery is set you can peek into the payload before the mouse button is released.
     IMGUI_API void          EndDragDropTarget();
-    IMGUI_API bool          IsDragDropActive();
 
     // Clipping
     IMGUI_API void          PushClipRect(const ImVec2& clip_rect_min, const ImVec2& clip_rect_max, bool intersect_with_current_clip_rect);