OPT: remove column "Combined labels"
OPT: remove column "Combined labels"

Former-commit-id: 74ca035031f6431b1ab8d871de3f59555c79aad2 [formerly ce055c9dd430516a244bb645ecd28723b9a50b1d]
Former-commit-id: d221ffb084d9c59f8553780ddb106706152620cb
Former-commit-id: 2969117c5b40324aaa4c9a3b15ca450d765c81d5
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox