pmie_check: remove a tempfile once finished with it
pmie_check: remove a tempfile once finished with it

Missing code sync-up between pmlogger_check and pmie_check.

Relates to https://github.com/performancecopilot/pcp/issues/1149

adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp