Removed the dependency from redis
Removed the dependency from redis


Former-commit-id: 3de0aabe351412ebc35a9c2c1fe19499db581e27 [formerly effc61c2bfc90a7eac2b2e1bc7c8b1e4a3d48456]
Former-commit-id: cecb2ff27ab2272e3e35e90a80f01de86e224845
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine