Delete gio
Delete gio

Deleting unnecessary file following authors feedback

Former-commit-id: c96f1be28aa40b5ba7cc7f8b8eb910f5adcd07c6 [formerly c96f1be28aa40b5ba7cc7f8b8eb910f5adcd07c6 [formerly 26fb21b0135b3f33412a616a72b8c7bd7f4587c8]]
Former-commit-id: 90f887d4318eb6f94c2b6d185305f31f5e2bc0ad
Former-commit-id: 167c9cf1fc5084835735da55edff20b567eb91b1
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine