Using httpServer from python for sharing sstate is known to be buggy, it can't
cope with the number/type of requests coming from bitbake and quietly fails
to share files.
This causes intermittent build failures which are hard to debug. We can
use a file:// url for the sstate mirror instead, removing the need for
the http server.
The sdk-update test is simply dropped since the SDK is never published
to this location and hence it would never have any update. Its equiavalent
to pointing at an empty web server. There is a better eSDK update test in
testsdk so rather than improve this one, lets drop it and concentrate on
the one there.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
