Previously swift.common.utils monkey patched logging.thread,
logging.threading, and logging._lock upon import with eventlet
threading modules, but that is no longer reasonable or necessary.
With py3, the existing logging._lock is not patched by eventlet,
unless the logging module is reloaded. The existing lock is not
tracked by the gc so would not be found by eventlet's
green_existing_locks().
Instead we group all monkey patching into utils function and apply
patching consistently across daemons and WSGI servers.
Co-Authored-By: Clay Gerrard <clay.gerrard@gmail.com>
Co-Authored-By: Alistair Coles <alistairncoles@gmail.com>
Closes-Bug: #1380815
Change-Id: I6f35ad41414898fb7dc5da422f524eb52ff2940f
84b995f275