PointerController: Simplify display info listener registration

Bug: 313033164
Test: Presubmit
Change-Id: I71e4943d36e0e3b5b0c9eaaaef7c8d04a82ba90d
diff --git a/libs/input/PointerController.h b/libs/input/PointerController.h
index 8daa3a3..6ee5707 100644
--- a/libs/input/PointerController.h
+++ b/libs/input/PointerController.h
@@ -79,9 +79,8 @@
     std::string dump() override;
 
 protected:
-    using WindowListenerRegisterConsumer =
-            std::function<std::pair<std::vector<gui::WindowInfo>, std::vector<gui::DisplayInfo>>(
-                    const sp<android::gui::WindowInfosListener>&)>;
+    using WindowListenerRegisterConsumer = std::function<std::vector<gui::DisplayInfo>(
+            const sp<android::gui::WindowInfosListener>&)>;
     using WindowListenerUnregisterConsumer =
             std::function<void(const sp<android::gui::WindowInfosListener>&)>;