PEP 772: Remove reference to replacing PEP 609 (#5166)

It evolved to no longer replace the PyPA governance.

Author: pradyunsg

peps/pep-0772.rst

@@ -14,7 +14,6 @@ Post-History:
   `25-Jul-2025 <https://discuss.python.org/t/pep-772-packaging-council-governance-process-round-3/100181>`__,
   `23-Mar-2026 <https://discuss.python.org/t/pep-772-packaging-council-governance-process-round-3/100181/108>`__,
   `14-Apr-2026 <https://discuss.python.org/t/pep-772-packaging-council-governance-process-round-3/100181/117>`__,
-Replaces: 609
 Resolution: `16-Apr-2026 <https://discuss.python.org/t/pep-772-packaging-council-governance-process-round-3/100181/118>`__