REF:  removed sct_register_to_template.sh (because new Python script)
REF:  removed sct_register_to_template.sh (because new Python script)

Former-commit-id: f7e5478b92b437940dfc152acd867efb0787e756
Former-commit-id: 54c972cb69a6f2d30aa47bf375f743285108034c
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox