remove unused field

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@274910 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/IntrospectionHelper.java

@@ -106,12 +106,6 @@ public final class IntrospectionHelper implements BuildListener {
      */
     private List   addTypeMethods;
 
-    /**
-     * Map from attribute names to methods to store configured nested types
-     * (String to NestedStorer).
-     */
-    private Hashtable nestedStorers;
-
     /**
      * The method to invoke to add PCDATA.
      */