Consolidate keyIcon and code with keyLabel attribute

Change-Id: I75fbd348fab5022606ca14552eb03b15af6684c8
diff --git a/java/res/xml/rows_phone.xml b/java/res/xml/rows_phone.xml
index d8dcfbd..6f05e51 100644
--- a/java/res/xml/rows_phone.xml
+++ b/java/res/xml/rows_phone.xml
@@ -68,8 +68,7 @@
         <!-- U+0030: "0" DIGIT ZERO -->
         <Key
             latin:keyStyle="num0KeyStyle"
-            latin:code="0x0030"
-            latin:keyLabel="0 +"
+            latin:keyLabel="0 +|0"
             latin:moreKeys="!noPanelAutoMoreKey!,+" />
         <Key
             latin:keyStyle="numSpaceKeyStyle" />