Fixing the build break in JDK 1.4.. Removed the JDK 1.5 specific code added in the http://svn.apache.org/viewvc?view=rev&rev=503313
webservices/commons/trunk/modules/axiom/modules/axiom-tests/src/test/java/org/apache/axiom/om/impl/llom/OMSourcedElementTest.java