Minor cleanup [skip CI]
Minor cleanup [skip CI]


Former-commit-id: 4e8368db1497911a974c17e1cbd60a09153f0ac4 [formerly 4e8368db1497911a974c17e1cbd60a09153f0ac4 [formerly b3eeb7b0599cb1c88556301be11f36b4bd0564ff]]
Former-commit-id: 9c0bba00e671f6ce5fff3b44a3542ec7097f8093
Former-commit-id: 30f4fff38d33f89532df770a158b4f3582e2ee18
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine