minor: format table result vec & remove some unnecessary semicolons

[WinkerDu]

Which issue does this PR close?

Closes #.

Rationale for this change

As a follow up pr of #2413 , and remove some unnecessary semicolons like

...
        if states.is_empty() {
            return Ok(());
        };    // we can remove this semicolon for code clean
...

What changes are included in this PR?

No.

Are there any user-facing changes?

No.

[tustvold]

I'm curious why rustfmt isn't finding the semicolons...

[Dandandan]

I'm curious why rustfmt isn't finding the semicolons...

In Rust ; is not meaningless, a block that returns a value no longer has a value after adding ;.

I think rustfmt only knows rust syntax, so this would be more something for rustc/clippy I think. Not sure why the existing lints don´t catch it.