tests: fix test failure after 3c1cdd1c1736 The hashes that apparently only were used for toggling commit messages were also used by tests. This change could seem to remove some test coverage, but the removed sha check is covered by the changeset_hash check a few lines later.

[tox]
minversion = 1.8
envlist = py{26,27}-pytest

[testenv]
setenv =
    PYTHONHASHSEED = 0
deps =
    -r{toxinidir}/dev_requirements.txt
    py26-pytest: unittest2
    python-ldap
    python-pam
commands =
    pytest: py.test {posargs}