TEST: travis: removed "ldd --version"
TEST: travis: removed "ldd --version"

Former-commit-id: 948f2b122cac23d9a23638db05a22ee78d3585ad
Former-commit-id: aa73db1270a9f28ef1a9e0d7a766280bc17d36e2
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox