Enable long-press digit input for tablets

Bug: 6632204
Change-Id: I8a62e78367c87c2fbb8f14575aef98035fa8440e
diff --git a/java/res/xml-sw600dp/rows_mongolian.xml b/java/res/xml-sw600dp/rows_mongolian.xml
index cfd8c8c..dc0c1fe 100644
--- a/java/res/xml-sw600dp/rows_mongolian.xml
+++ b/java/res/xml-sw600dp/rows_mongolian.xml
@@ -27,8 +27,7 @@
         latin:keyWidth="8.182%p"
     >
         <include
-            latin:keyboardLayout="@xml/rowkeys_mongolian1"
-            latin:keyLabelFlags="disableAdditionalMoreKeys|disableKeyHintLabel" />
+            latin:keyboardLayout="@xml/rowkeys_mongolian1" />
         <Key
             latin:keyStyle="deleteKeyStyle"
             latin:keyWidth="fillRight" />