Removed GroundShakingIntensityModel.forbid_instantiation()
Removed GroundShakingIntensityModel.forbid_instantiation()


Former-commit-id: c45e57ca65b1f3207db074d8faafa4974e475482 [formerly 0c079acce14f3b56acb64b577962ae5d5e1dd31f] [formerly 0c079acce14f3b56acb64b577962ae5d5e1dd31f [formerly 52a6e1b6fdf22b226d12b913d6f6f70845f3db05]]
Former-commit-id: 2a11d5594c07c59bea1d84cb1bc2a493ce74f702
Former-commit-id: da4093f265ef0d70b56bb94f76f6e78bce3dec3f
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine