remove unused reference to guppy
remove unused reference to guppy


Former-commit-id: d6fc37af5023bfded126e4b17553ccd11956547a [formerly 1ae7bb703002c58dcf50ffccb1614aa7e041e5d6]
Former-commit-id: 0c8647a6294a433081e100f9ef9116e426651e53
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine