Removed some unused code
Removed some unused code


Former-commit-id: 4419385348f03068fdcc5f5966fb6796ae53fcda [formerly a5e831f6c7094e494b8f4bacd3141efce7ad60ea]
Former-commit-id: e32d5840e5f7dceb8e0337b3ed1c8cb3bb477918
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine