448096: Not used variable in
DefaultServiceTunnelContentHandler.createDefaultWsSecurityElement()
removed 

Change-Id: Ib7128f8bee8bd5198a0cc64ad2419e4b2a11c4ff
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=448096
Signed-off-by: Daniel Schmid <daniel.schmid@bsiag.com>
Reviewed-on: https://git.eclipse.org/r/35573
Tested-by: Hudson CI
Reviewed-by: Judith Gull <jgu@bsiag.com>