Removed a redundant import
Removed a redundant import


Former-commit-id: b8aace615050f18e09660d46f1b69ed984d2565d [formerly 721163357e68acea56a69810b39b7e8ef4ec309e]
Former-commit-id: 465032f4611c72035604851db14e80b19433b691
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine