Revert "Update docs to match encryption requirements"

This reverts commit cebb55ea9d98dc7ba93eed520b874ac24ff96800.

Reason for revert: broke docs builds

Change-Id: I3a4b8d274141efec90fae2ed0b9324194288c635
diff --git a/core/java/android/app/backup/FullBackupDataOutput.java b/core/java/android/app/backup/FullBackupDataOutput.java
index f1d9dc6..18f4283 100644
--- a/core/java/android/app/backup/FullBackupDataOutput.java
+++ b/core/java/android/app/backup/FullBackupDataOutput.java
@@ -26,12 +26,8 @@
 
     /**
      * Returns flags with additional information about the backup transport. For supported flags see
-     * {@link android.app.backup.BackupAgent}.
+     * {@link android.app.backup.BackupAgent}
      *
-     * <p>Returns the same flags that {@link BackupTransport#getTransportFlags()} returns.
-     *
-     * @see BackupAgent#FLAG_CLIENT_SIDE_ENCRYPTION_ENABLED
-     * @see BackupAgent#FLAG_DEVICE_TO_DEVICE_TRANSFER
      * @see BackupDataOutput#getTransportFlags()
      */
     public int getTransportFlags() {