Support addtionalMoreKeys

This change also removes
  * Unused more_keys_for_q, w, and p.

Change-Id: Idb99e5f6d8c2ad2d28437f42b35b21c282cd181f
diff --git a/java/res/xml-sw768dp/row_qwerty1.xml b/java/res/xml-sw768dp/row_qwerty1.xml
index de91013..f6600ad 100644
--- a/java/res/xml-sw768dp/row_qwerty1.xml
+++ b/java/res/xml-sw768dp/row_qwerty1.xml
@@ -29,11 +29,9 @@
             latin:keyLabelFlags="alignLeft"
             latin:keyWidth="7.969%p" />
         <Key
-            latin:keyLabel="q"
-            latin:moreKeys="@string/more_keys_for_q" />
+            latin:keyLabel="q" />
         <Key
-            latin:keyLabel="w"
-            latin:moreKeys="@string/more_keys_for_w" />
+            latin:keyLabel="w" />
         <Key
             latin:keyLabel="e"
             latin:moreKeys="@string/more_keys_for_e" />
@@ -56,8 +54,7 @@
             latin:keyLabel="o"
             latin:moreKeys="@string/more_keys_for_o" />
         <Key
-            latin:keyLabel="p"
-            latin:moreKeys="@string/more_keys_for_p" />
+            latin:keyLabel="p" />
         <Key
             latin:keyStyle="deleteKeyStyle"
             latin:keyXPos="-9.219%p"