Removed duplicated class
Removed duplicated class


Former-commit-id: 8f7a2112e9c40e9745bc5e2713272ee7d8ae0213 [formerly 573a5477a38c612eff2613637e10f3a4ade8121f]
Former-commit-id: e45a4ae37f8a058c1cbc1a2b3477f3d9c39a6ccf
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine