am 84a75f8b: am f9e28fd2: am 21a6c8a9: am 4d89e2af: clean up backup imports

* commit '84a75f8b6ed1835ef9dd73d34a22f02659ac6f29':
  clean up backup imports
diff --git a/src/com/android/launcher3/LauncherBackupHelper.java b/src/com/android/launcher3/LauncherBackupHelper.java
index e42526d..f85d484 100644
--- a/src/com/android/launcher3/LauncherBackupHelper.java
+++ b/src/com/android/launcher3/LauncherBackupHelper.java
@@ -31,9 +31,8 @@
 import com.android.launcher3.backup.BackupProtos.Widget;
 
 import android.app.backup.BackupDataInputStream;
-import android.app.backup.BackupHelper;
-import android.app.backup.BackupDataInput;
 import android.app.backup.BackupDataOutput;
+import android.app.backup.BackupHelper;
 import android.app.backup.BackupManager;
 import android.appwidget.AppWidgetManager;
 import android.appwidget.AppWidgetProviderInfo;