Remove "fillBoth" enum value from keyWidth attribute of Key

Change-Id: Icc5ffb8286aeda298b46aeba05e44608e342bc57
diff --git a/java/res/xml/rows_qwerty.xml b/java/res/xml/rows_qwerty.xml
index 716d106..cdd4203 100644
--- a/java/res/xml/rows_qwerty.xml
+++ b/java/res/xml/rows_qwerty.xml
@@ -47,7 +47,7 @@
             latin:keyboardLayout="@xml/rowkeys_qwerty3" />
         <Key
             latin:keyStyle="deleteKeyStyle"
-            latin:keyWidth="fillBoth"
+            latin:keyWidth="fillRight"
             latin:visualInsetsLeft="1%p" />
     </Row>
     <include