Please delete stray '6.0.0-rc1-dev' tag until releasing the version

Two years ago version 6.0.0-rc1-dev was tagged:

1a229187

But the source actually builds 5.99.0 which was tagged much later.

Can someone delete the 6.0.0-rc1-dev tag until 6.0.x is actually released? The presence of this tag prevents using git to discover the latest version (for packaging nightly builds, for example).