remove needless explicit type for swap<>()
remove needless explicit type for swap<>()

MSVC gives:
C:/PROGRA~2/MICROS~2.0/VC/include\vector(1544) : error C2825: '_Alloc': must be a class or namespace when followed by '::'
        C:/PROGRA~2/MICROS~2.0/VC/include\vector(1589) : see reference to class template instantiation 'std::_Vb_iter_base<_Alloc>' being compiled
        with
        [
            _Alloc=ScDPResultFilterSet::MemberNode *
        ]
        C:/cygwin/home/tinderbox/master-build/sc/source/core/data/dpresfilter.cxx(147) : see reference to class template instantiation 'std::_Vb_reference<_Alloc>' being compiled
        with
        [
            _Alloc=ScDPResultFilterSet::MemberNode *
        ]

Change-Id: I394f861aa29a8b6e43ea92447215a7868955555a

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core