INST: requirementsConda: removed pip installation with conda (issue #557)
INST: requirementsConda: removed pip installation with conda (issue #557)

Former-commit-id: 5c75c8f9c1900383247ea863a9b00d68969858fc [formerly e0bec883a257ff71066feefba2ab544584ffd429]
Former-commit-id: 9702abc173c0bc4302f591a8c7c9e14e60b555cf
Former-commit-id: aac9063c507325e47a947a0ebadb2c0a9c64aade
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox