Merge branch 'remove-unused-function' into 'master'

bilby/core/result.py

bilby/core/utils/__init__.py

bilby/core/utils/conversion.py

bilby/core/utils/progress.py

bilby/gw/detector/interferometer.py

bilby/gw/detector/networks.py

bilby/gw/likelihood/base.py

test/gw/detector/interferometer_test.py

test/gw/detector/networks_test.py