Small simplification [skip CI]
Small simplification [skip CI]


Former-commit-id: d3d54d979a05ff8fa10f5e1776b59ef781847c09 [formerly d3d54d979a05ff8fa10f5e1776b59ef781847c09 [formerly e6ca7eff3afe2bfbd98b983dedfc30511c6dc4e0]]
Former-commit-id: 99ec0382157b659442058cf72b94ef542f4eb4fc
Former-commit-id: 2f00a81ba070d3ce2003a354d2506ed56ce02924
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine