remove ancient "ignore pyproject" directive

zzzeek · zzzeek · commit f104b7f915fb · 2023-12-20T09:01:28.000-05:00
this directive was added due to some miscellaneous issue
years ago but we now need this file to be present in source
dist.

Change-Id: Ia422c3f01accf9b96dd150b9f5596dc005fb7f0d
diff --git a/MANIFEST.in b/MANIFEST.in
@@ -5,7 +5,4 @@ include README* LICENSE CHANGES* log_tests.ini tox.ini hash_port.py
 
 prune docs/build/output
 
-# omit pyproject so that pip installers
-# don't use poorly supported pep517 mode
-exclude pyproject.toml
 
