REF: removed old usage function
REF: removed old usage function

Former-commit-id: 4728e8145041858ac75651108b4cc4f71e66f61d [formerly 7c06c85a8f0db9ccccd2c2c5fbea57cbaca81d41]
Former-commit-id: 6b5531f0387b51065ad17a33a27f4efdb65973c8
Former-commit-id: f7defa722dc2e510491b1f61a05075e4daee2d93
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox