[PATCH] s3:build_env.sh: allow to override build date

[Bernhard M. Wiedemann]

On 2017-06-26 11:10, Andrew Bartlett wrote:
> Thanks for trying to push this area of work upstream.  In this case I
> would frankly prefer we just removed the variables rather than promote
> further complexity. 

dropping them completely, would be fine, too.
I was just assuming that they served someone's purpose

With dropping, in addition to the debian patches, several lines in
buildtools/wafsamba/samba_patterns.py
could be dropped then.