Prettier 3.0.2
Playground link

--parser markdown

Input:

```ts
const t = <T,>() => {};
```

```tsx
const t = <T,>() => {}
```

Output:

```ts
const t = <T,>() => {};
```

```tsx
const t = <T,>() => {}
```

The second codeblock prints a trailing comma and it's the correct behavior, however the first codeblock should remove the trailing comma

Expected behavior:
The first codeblock should not have a trailing comma