Removing some non-namespace aware DOM calls


Conflicts:
	rt/ws/security/src/main/java/org/apache/cxf/ws/security/policy/builders/EncryptedPartsBuilder.java
	rt/ws/security/src/main/java/org/apache/cxf/ws/security/policy/builders/RequiredPartsBuilder.java
	rt/ws/security/src/main/java/org/apache/cxf/ws/security/policy/builders/SignedPartsBuilder.java

git-svn-id: https://svn.apache.org/repos/asf/cxf/branches/wss4j2.0-port@1458927 13f79535-47bb-0310-9956-ffa450edef68