https://evergreen.mongodb.com/version/mongodb_mongo_v6.0_8b888c8bff0c57bfb0df6979b324aeba431359e5

^ We removed 4.0 downloads in SERVER-74629 which resulted in these 4.0 dependent multiversion tests to fail https://evergreen.mongodb.com/task/mongodb_mongo_v6.0_enterprise_rhel_80_64_bit_display_multiversion_8b888c8bff0c57bfb0df6979b324aeba431359e5_23_03_07_19_38_38

We should remove major_version_upgrade.js, skip_level_upgrade.js completely.

And we should remove the dependency on 4.0 from major_verison_upgrade_backup_cursor.js. (in the enterprise module)