purge.py: remove import uwsgi
purge.py: remove import uwsgi

We aren't actually using any methods from the uwsgi library, only the
uwsgidecorators library.

Signed-off-by: California Sullivan <2c9b9344ce0c0bd803b8397085f0d9381eef7902@intel.com>

alexjch/telemetrics-backend,alexjch/telemetrics-backend,alexjch/telemetrics-backend,alexjch/telemetrics-backend