Support addtionalMoreKeys

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

Change-Id: Idb99e5f6d8c2ad2d28437f42b35b21c282cd181f
diff --git a/java/res/xml-sw768dp/rows_qwertz.xml b/java/res/xml-sw768dp/rows_qwertz.xml
index 05a2a9c..7056a94 100644
--- a/java/res/xml-sw768dp/rows_qwertz.xml
+++ b/java/res/xml-sw768dp/rows_qwertz.xml
@@ -31,11 +31,9 @@
             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" />
@@ -58,8 +56,7 @@
             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"