Remove sudo: false from travis since it's now ignored
Remove sudo: false from travis since it's now ignored


Former-commit-id: 51ab9ed4b4c33dcbb96499df8365015d6ffe0843 [formerly 655b15f066f09c28e2822e28d7250f95f518c204]
Former-commit-id: 6f34a9f16f696f25e20cdd51f7dd1af2c2e266cc
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine