Unhide slice data APIs

Test: CTS
Change-Id: Ie2a05e30e5ac6c830b6a9a14b2d207b7e2fbe9da
diff --git a/core/java/android/content/ContentProvider.java b/core/java/android/content/ContentProvider.java
index 5b2bf45..cdeaea3 100644
--- a/core/java/android/content/ContentProvider.java
+++ b/core/java/android/content/ContentProvider.java
@@ -2099,8 +2099,7 @@
     public static Uri maybeAddUserId(Uri uri, int userId) {
         if (uri == null) return null;
         if (userId != UserHandle.USER_CURRENT
-                && (ContentResolver.SCHEME_CONTENT.equals(uri.getScheme())
-                        || ContentResolver.SCHEME_SLICE.equals(uri.getScheme()))) {
+                && ContentResolver.SCHEME_CONTENT.equals(uri.getScheme())) {
             if (!uriHasUserId(uri)) {
                 //We don't add the user Id if there's already one
                 Uri.Builder builder = uri.buildUpon();