Removed the obsolete rcurves exporters
Removed the obsolete rcurves exporters


Former-commit-id: 90c942fb3c489039a09f9c07c27dec2acde87a0b [formerly af33b7bf4cf742f7b3399a984d28499dc471df4f]
Former-commit-id: b9ce07c9739763897349a9baa194baf931e6954d
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine