Remove obsolete KeyChain references to USE_CREDENTIALS (1 of 2)

Change-Id: I3838e8cead176043d1066802ff62ba2f4930f579
diff --git a/tests/AndroidManifest.xml b/tests/AndroidManifest.xml
index 36b91d6..1f4e5d1 100644
--- a/tests/AndroidManifest.xml
+++ b/tests/AndroidManifest.xml
@@ -18,7 +18,6 @@
           package="com.android.keychain.tests">
   
     <uses-permission android:name="android.permission.GET_ACCOUNTS"/>
-    <uses-permission android:name="android.permission.USE_CREDENTIALS"/>
     <uses-permission android:name="android.permission.INTERNET"/>
 
     <!--