navigatorview.cpp:297: warning: unused parameter 'oldIndex'

navigatortreemodel.cpp:344: warning: 'void QmlDesigner::findTargetItem(.
..)' defined but not used

Change-Id: I02183215f766a31fea63da15c7d79c1dd563d840
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>
Reviewed-by: Tim Jenssen <tim.jenssen@digia.com>