REF: removed unecessary imports
REF: removed unecessary imports

Former-commit-id: 608ba505dee1d4a7b09c2a3fd0d52ed1ade888d9 [formerly 030cce8d5a780bb26868ef6131cd6546a27d38cc]
Former-commit-id: 6880db9982e98b980073aa8a90043996aa88c6fc
Former-commit-id: e87d7a2c2b9814e85569786bba99ddca128d574e
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox