(SV) Remove all survival related attributes except OS_STATUS
(SV) Remove all survival related attributes except OS_STATUS


Former-commit-id: 20a66c051fa07c2d9276bb93892a6e1d99cb1669
cBioPortal/cbioportal-frontend,alisman/cbioportal-frontend,cBioPortal/cbioportal-frontend,alisman/cbioportal-frontend,alisman/cbioportal-frontend,alisman/cbioportal-frontend,cBioPortal/cbioportal-frontend,alisman/cbioportal-frontend,cBioPortal/cbioportal-frontend,cBioPortal/cbioportal-frontend,cBioPortal/cbioportal-frontend,alisman/cbioportal-frontend