Remove unused function from TouchState

The getWindow function is not used. Let's delete it.

Bug: 211379801
Test: atest inputflinger_tests
Change-Id: I66992111d93f7d522c457a909e451a57a3c9a3d7
diff --git a/services/inputflinger/dispatcher/TouchState.cpp b/services/inputflinger/dispatcher/TouchState.cpp
index eb31046..a3f45cf 100644
--- a/services/inputflinger/dispatcher/TouchState.cpp
+++ b/services/inputflinger/dispatcher/TouchState.cpp
@@ -138,14 +138,4 @@
     return nullptr;
 }
 
-sp<WindowInfoHandle> TouchState::getWindow(const sp<IBinder>& token) const {
-    for (const TouchedWindow& touchedWindow : windows) {
-        const auto& windowHandle = touchedWindow.windowHandle;
-        if (windowHandle->getToken() == token) {
-            return windowHandle;
-        }
-    }
-    return nullptr;
-}
-
 } // namespace android::inputdispatcher
diff --git a/services/inputflinger/dispatcher/TouchState.h b/services/inputflinger/dispatcher/TouchState.h
index d324611..f6e9fb6 100644
--- a/services/inputflinger/dispatcher/TouchState.h
+++ b/services/inputflinger/dispatcher/TouchState.h
@@ -59,7 +59,6 @@
     sp<android::gui::WindowInfoHandle> getFirstForegroundWindowHandle() const;
     bool isSlippery() const;
     sp<android::gui::WindowInfoHandle> getWallpaperWindow() const;
-    sp<android::gui::WindowInfoHandle> getWindow(const sp<IBinder>&) const;
 };
 
 } // namespace inputdispatcher