[patch] remove empty directories

[Jonathan Wakely]

On 4 July 2012 07:58, Matthias Klose wrote:
> The following directories are empty, can they be removed?
>
> libstdc++-v3/testsuite/28_regex/headers/04_header/regex
> libstdc++-v3/testsuite/28_regex/headers/04_header
> libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended
> libstdc++-v3/testsuite/28_regex/algorithms/02_match/basic
> libstdc++-v3/testsuite/28_regex/algorithms/02_match

Yes, they were emptied a week ago so please remove them. Thanks.