This reverts commit d525f8d60ce6cc2968206c10997917f4203080f5.
- Drop redundant "minor version >= 0" check - For kf6, require version >= 6.0, i.e.
Currently the Rust support is gated on not having MODVERSIONS enabled, and as a result an "allmodconfig" build will disable Rust build tests. While MODVERSIONS configurations are worth build testing, the feature is not actually meaningful unless you run the result, and I'd rather get build coverage of Rust than MODVERSIONS.