Merging ub-launcher3-qt-r1-dev, build 5662440

Test: Manual

Bug:132784008 P4 Dark mode preview is not shown until activity restarts.
Bug:132812918 P2 Rendering jank when wallpaper picker loads
Bug:64712476 P3 Import translations for dev branches
Change-Id: I6b410239615ef55b934e3fed4f31d3a0f54b6d7a
diff --git a/src/com/android/wallpaper/picker/WallpaperPickerDelegate.java b/src/com/android/wallpaper/picker/WallpaperPickerDelegate.java
index 18a7c2c..3537db0 100644
--- a/src/com/android/wallpaper/picker/WallpaperPickerDelegate.java
+++ b/src/com/android/wallpaper/picker/WallpaperPickerDelegate.java
@@ -27,7 +27,6 @@
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import androidx.core.os.BuildCompat;
 import androidx.fragment.app.FragmentActivity;
 
 import com.android.wallpaper.R;