Remove empty setup.py and references to it (#5355)

scripts/update_changelog.py

@@ -124,7 +124,7 @@ def write_changelog(file_path: Path, release: str, content: str) -> None:
 
 
 def update_version(file_path: Path, release: str) -> None:
-    """Update template version in setup.py."""
+    """Update template version in pyproject.toml."""
     old_content = file_path.read_text()
     updated_content = re.sub(
         r'\nversion = "\d+\.\d+\.\d+"\n',

tox.ini

@@ -9,4 +9,4 @@ commands = pytest -n auto {posargs:./tests}
 
 [testenv:black-template]
 deps = black
-commands = black --check hooks tests setup.py docs scripts
+commands = black --check hooks tests docs scripts