Revert "Use new UnsupportedAppUsage annotation."

This reverts commit a5264903e22bc741add895133474ea13a370de4c.

Reason for revert: Droidcop-triggered revert due to breakage https://android-build.googleplex.com/builds/quarterdeck?branch=git_master&target=sdk_phone_armv7-sdk&lkgb=6083299&lkbb=6085371&fkbb=6083313, bug b/146533269

Change-Id: Ie5b031d7b277cf0e09b0a9776b26bf74f5f69e70
diff --git a/rs/java/android/renderscript/Font.java b/rs/java/android/renderscript/Font.java
index df9d801..583350e 100644
--- a/rs/java/android/renderscript/Font.java
+++ b/rs/java/android/renderscript/Font.java
@@ -16,16 +16,17 @@
 
 package android.renderscript;
 
-import android.compat.annotation.UnsupportedAppUsage;
-import android.content.res.AssetManager;
-import android.content.res.Resources;
-import android.os.Environment;
-
 import java.io.File;
 import java.io.InputStream;
 import java.util.HashMap;
 import java.util.Map;
 
+import android.os.Environment;
+
+import android.annotation.UnsupportedAppUsage;
+import android.content.res.AssetManager;
+import android.content.res.Resources;
+
 /**
  * @hide
  * @deprecated in API 16