Cleanup decorator tests

[aspeddro]

Remove decorator nodes 20abe87 and
format tests with tree-sitter test --update f41ba3e

[nkrkv]

Thanks a lot!

Also, if you have an idea on how to prevent committing non-formatted tests on the CI level (so that your goodwill is enforced), I would much appreciate such a PR. I see it as trying tree-sitter test --update and checking if there were some changes or not.

[aspeddro]

The command tree-sitter test --update update files tests with current parse output. It's not actually a formatter.

What I did was this:

• Remove an expression_statement
• Run tree-sitter test --update, then the entire file is formatted.
• Add the previously removed expression_statement.