jaxb databinding doesn't use jaxb-xjc

git-svn-id: https://svn.apache.org/repos/asf/cxf/trunk@1515486 13f79535-47bb-0310-9956-ffa450edef68
Slight optimization to avoid checking the ASM stuff unless it's actually needed

git-svn-id: https://svn.apache.org/repos/asf/cxf/trunk@1515487 13f79535-47bb-0310-9956-ffa450edef68