Consolidate keyIcon and code with keyLabel attribute

Change-Id: I75fbd348fab5022606ca14552eb03b15af6684c8
diff --git a/java/res/xml/keys_parentheses.xml b/java/res/xml/keys_parentheses.xml
index 25e89c9..fe4e5de 100644
--- a/java/res/xml/keys_parentheses.xml
+++ b/java/res/xml/keys_parentheses.xml
@@ -22,11 +22,9 @@
     xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin"
 >
     <Key
-        latin:keyLabel="("
-        latin:code="!code/key_left_parenthesis"
+        latin:keyLabel="(|!code/key_left_parenthesis"
         latin:moreKeys="!text/more_keys_for_left_parenthesis" />
     <Key
-        latin:keyLabel=")"
-        latin:code="!code/key_right_parenthesis"
+        latin:keyLabel=")|!code/key_right_parenthesis"
         latin:moreKeys="!text/more_keys_for_right_parenthesis" />
 </merge>