remove assert statement
remove assert statement


Former-commit-id: a96168265e32c76cb0cc6793e439729d27036453 [formerly be87dd207baa8751e9b63d15f4429c643bd8f4a6] [formerly be87dd207baa8751e9b63d15f4429c643bd8f4a6 [formerly b3a0f8f098df5b83fc649e42a0d31e3113c686ab]]
Former-commit-id: 3d1cfb1d7c691f398fc26e6d47ac214f2e0a859a
Former-commit-id: dad96586a7e8de9815098c5aa75be973e7579d8f
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine