Delete Page about SahiDriver (which is abandoned)

[ThomasLandauer]

When installing SahiDriver with composer require behat/mink-sahi-driver (as explained at http://mink.behat.org/en/latest/drivers/sahi.html ) I get:

Package behat/sahi-client is abandoned, you should avoid using it. No replacement was suggested.
Package behat/mink-sahi-driver is abandoned, you should avoid using it. No replacement was suggested.

...according to https://packagist.org/packages/behat/mink-sahi-driver

So if the driver is abandoned, I would suggest deleting it from the docs.