DOC: removed old usage
DOC: removed old usage

Former-commit-id: 38dd87293af57afd7c7b1093d6a5e702d2a08813 [formerly 0c4a0659312d13539775af041629299fc6949620]
Former-commit-id: c7763ce40e8e53464fdf0a11e53cddf413c21c16
Former-commit-id: d9c6f37c888cef187a9cbac30aa6c29cf6abff83
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox