cleanup patch

[Jonathan Wakely]

On 28 June 2011 21:36, François Dumont wrote:
> Here is a small patch to cleanup debug code.
>
> 2011-06-28  François Dumont <francois.cppdevs@free.fr>
>
>        * include/debug/set.h, unordered_map, multiset.h, forward_list,
>        unordered_set, vector, deque, string, list, multimap.h: Remove base
>        class default constructor calls.
>        * include/debug/map.h: Likewise and cleanup several redefinition of
>        base iterator typedef.
>
>
> Tested under linux x86_64.

(Remember to CC gcc-patches for all patches)

This is OK to check in, thanks.