vcs: drop subprocessio __del__ - it should no longer be necessary, and it might confuse both users and garbage collector After 8dbe46ca608f, we always explicitly close so resources can be released early. __del__ makes it hard for the garbage collector to clean up, and it is misleading to use it as if it was a reliable "Resource acquisition is initialization" finale.

[tox]
minversion = 1.8
envlist = py27-pytest

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