Removed some more pygame references

Author: inclement

ci/constants.py

@@ -42,7 +42,6 @@ class TargetPython(Enum):
     'omemo',
     # requires `libpq-dev` system dependency e.g. for `pg_config` binary
     'psycopg2',
-    'pygame',
     # most likely some setup in the Docker container, because it works in host
     'pyjnius', 'pyopenal',
     'pyproj',