Removed some duplication in ClassicalRiskTestCase
Removed some duplication in ClassicalRiskTestCase


Former-commit-id: 97e189d539e82cf138627096c4b4d7acd6adb1f6 [formerly ac9de140e83f4b2ba4b95894dfd0b5194d8fa471]
Former-commit-id: c3859326bed22cf9c58c65fb624c5b8bc86f4c2d
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine