fix(tools): remove mention of dropped shell script in async_to_sync.py

diff --git a/tools/async_to_sync.py b/tools/async_to_sync.py
index 0e450b278e9bc8cea658b5c4223d9856cff195a2..8944775701bf8596f7c5a49c4d3051ba95e80096 100755 (executable)
--- a/tools/async_to_sync.py
+++ b/tools/async_to_sync.py
@@ -1,8 +1,7 @@
 #!/usr/bin/env python
 """Convert async code in the project to sync code.
 
-Note: the version of Python used to run this script affects the output. Please
-use the `async-to-sync.sh` wrapper to use a version consistent with CI checks.
+Note: the version of Python used to run this script affects the output.
 """
 
 from __future__ import annotations