Dead code elimination:

If OMNavigator#isNavigable() and OMNavigator#isCompleted() both return false, then this means that the next node has not been built. This implies that there must be a builder and that the builder is not complete, i.e. builder != null and StAXOMBuilder#isCompleted() returns false.

Note that this code was added in AXIOM-116, but no unit test was ever produced to show the purpose of this code.


git-svn-id: https://svn.apache.org/repos/asf/webservices/commons/trunk/modules/axiom@1432625 13f79535-47bb-0310-9956-ffa450edef68