INST: removed the need to be sudo when creating links, especially when removing not useful scripts
INST: removed the need to be sudo when creating links, especially when removing not useful scripts

Former-commit-id: de9026341411bbd8c62783f14cd5f9acfe7455a2
Former-commit-id: ebd409168f6bd56356c0efbef30360ff7d20376c
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox