diff --git a/gfx/layers/apz/src/APZCTreeManager.cpp b/gfx/layers/apz/src/APZCTreeManager.cpp
index a58b6ccb8055..599722a1e528 100644
--- a/gfx/layers/apz/src/APZCTreeManager.cpp
+++ b/gfx/layers/apz/src/APZCTreeManager.cpp
@@ -2527,12 +2527,6 @@ ParentLayerPoint APZCTreeManager::DispatchFling(
   return finalResidualVelocity;
 }
 
-bool APZCTreeManager::HitTestAPZC(const ScreenIntPoint& aPoint) {
-  RefPtr<AsyncPanZoomController> target =
-      GetTargetAPZC(aPoint, nullptr, nullptr);
-  return target != nullptr;
-}
-
 already_AddRefed<AsyncPanZoomController> APZCTreeManager::GetTargetAPZC(
     const ScrollableLayerGuid& aGuid) {
   RecursiveMutexAutoLock lock(mTreeLock);
diff --git a/gfx/layers/apz/src/APZCTreeManager.h b/gfx/layers/apz/src/APZCTreeManager.h
index 7debefc4addd..3ce0906a3566 100644
--- a/gfx/layers/apz/src/APZCTreeManager.h
+++ b/gfx/layers/apz/src/APZCTreeManager.h
@@ -281,11 +281,6 @@ class APZCTreeManager : public IAPZCTreeManager, public APZInputBridge {
    */
   void ClearTree();
 
-  /**
-   * Tests if a screen point intersect an apz in the tree.
-   */
-  bool HitTestAPZC(const ScreenIntPoint& aPoint);
-
   /**
    * Sets the dpi value used by all AsyncPanZoomControllers attached to this
    * tree manager.