chore(docs): remove duplicate bzlmod guidance (#3278)

It's out of date with
https://github.com/bazel-contrib/rules_python/blob/main/BZLMOD_SUPPORT.md
which says the feature is GA now

Author: alexeagle

README.md

@@ -25,7 +25,4 @@ For detailed documentation, see <https://rules-python.readthedocs.io>
 
 ## Bzlmod support
 
-- Status: Beta
-- Full Feature Parity: No
-
 See [Bzlmod support](BZLMOD_SUPPORT.md) for more details.