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.