fixed findbugs violation: URF_UNREAD_FIELD

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/digester/trunk@1142023 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/main/java/org/apache/commons/digester3/SetNestedPropertiesRule.java b/src/main/java/org/apache/commons/digester3/SetNestedPropertiesRule.java
index 0c414b7..c03dbdb 100644
--- a/src/main/java/org/apache/commons/digester3/SetNestedPropertiesRule.java
+++ b/src/main/java/org/apache/commons/digester3/SetNestedPropertiesRule.java
@@ -437,7 +437,6 @@
     private class AnyChildRule
         extends Rule
     {
-        private String currChildNamespaceURI = null;
 
         private String currChildElementName = null;
 
@@ -445,8 +444,6 @@
         public void begin( String namespaceURI, String name, Attributes attributes )
             throws Exception
         {
-
-            currChildNamespaceURI = namespaceURI;
             currChildElementName = name;
         }