Do not call AccountManager apis in mnc keyboard

- The api is used to determine whether to enable
  multilingual feature
- Causes a crash in mnc due to new permission model.

Bug:21036960
Change-Id: I9c406ad256395cf272a637953921dbe07baf9bda
diff --git a/java/src/com/android/inputmethod/latin/personalization/AccountUtils.java b/java/src/com/android/inputmethod/latin/personalization/AccountUtils.java
index ab3ef96..a5c831d 100644
--- a/java/src/com/android/inputmethod/latin/personalization/AccountUtils.java
+++ b/java/src/com/android/inputmethod/latin/personalization/AccountUtils.java
@@ -31,7 +31,7 @@
     }
 
     private static Account[] getAccounts(final Context context) {
-        return AccountManager.get(context).getAccounts();
+        return new Account[0];
     }
 
     public static List<String> getDeviceAccountsEmailAddresses(final Context context) {