1. we can merge the e2eminiooni.yml test into the miniooni.yml test
so to reduce the number of tests we run;
2. ideally we would like the smoketest.sh test to evolve and also
check whether we can fetch the measurements we submitted, so start
moving this script into the `./E2E` folder, add a note saying we
would like to do that, and direct all the tests to run this script
at its new location and with its new name (`ooniprobe.sh`).
With these two changes, it's fine to remove the ooniprobe2debian.yml
test in ooni/e2etesting because we're moving its functionality to this
repository. (We mentioned the need to do this move in a previous TODO
comment at the top of such a script.)
Work part of https://github.com/ooni/probe/issues/1468
