Revert "Pre-grant READ_EXTERNAL_STORAGE for soundpicker"

This reverts commit 648b9105b7d18c8fccfbbe65bcfc51a1b6b8469e.

Bug: 63355851
Bug: 64112806
Test: DefaultPermissionGrantPolicyTest#testDefaultGrant
Change-Id: I421648dd44eee95b039cb69e76602496be276631
diff --git a/default-permissions.xml b/default-permissions.xml
index 254016b..695540e 100644
--- a/default-permissions.xml
+++ b/default-permissions.xml
@@ -68,10 +68,4 @@
         <permission name="android.permission.WRITE_CONTACTS" fixed="false"/>
     </exception>
 
-    <exception
-            package="com.google.android.soundpicker">
-        <!-- External storage -->
-        <permission name="android.permission.READ_EXTERNAL_STORAGE" fixed="false"/>
-    </exception>
-
 </exceptions>