Remove Saucelabs docs, not used
Remove Saucelabs docs, not used

I haven’t heard of anybody actually using Saucelabs,
and those instructions are already out of date - e.g. the wd_host seems to require SSL now
(https://wiki.saucelabs.com/display/DOCS/Instant+Selenium+PHP+Tests)
and the capabilities are woefully outdated.

silverstripe/silverstripe-behat-extension,tractorcow/silverstripe-behat3,silverstripe/silverstripe-behat-extension,silverstripe-labs/silverstripe-behat-extension