bin/ldap_sync: revert commit 04dee6fdfdff Commit 04dee6fdfdff fixed an apparent problem detected by isort, but as Mads Kiilerich pointed out, it was caused by an incomplete virtualenv that did not include 'python-ldap'. As a result, isort would not consider 'ldap' as a standard module and treated it as a local module. A subsequent commit will fix the 'make-release' script to install all expected dependencies.

pytest >= 4.6.6, < 4.7
pytest-sugar >= 0.9.2, < 0.10
pytest-benchmark >= 3.2.2, < 3.3
pytest-localserver >= 0.5.0, < 0.6
mock >= 3.0.0, < 3.1
Sphinx >= 1.8.0, < 1.9
WebTest >= 2.0.3, < 2.1
isort == 4.3.21