Minor optimization to JAXRSUtils

git-svn-id: https://svn.apache.org/repos/asf/cxf/trunk@1442077 13f79535-47bb-0310-9956-ffa450edef68
[CXF-4804] Removing ParameterHandler

git-svn-id: https://svn.apache.org/repos/asf/cxf/trunk@1442078 13f79535-47bb-0310-9956-ffa450edef68