worker controller remove tmp files at worker exit
worker controller remove tmp files at worker exit


Former-commit-id: 10beb53d8944806314566210849d3246cff2ced3
mvertes/skale-engine,mvertes/skale-engine,skale-me/skale-engine,skale-me/skale-engine,skale-me/skale-engine,mvertes/skale-engine