Delete unused binding code action doesn't delete haddock

The delete unused binding code action seems to leave the Haddock attached to the binding it was meant to delete.

### Your environment

Which OS do you use? NixOs

Which version of GHC do you use and how did you install it? 9.10.2

How is your project built (alternative: link to the project)? cabal-install

Which LSP client (editor/plugin) do you use? emacs+lsp-mode

Which version of HLS do you use and how did you install it? 2.11.0.0

Have you configured HLS in any way (especially: a `hie.yaml` file)? not particularly

### Steps to reproduce

If I have a definition like:

```
module Foo () where
{- | My haddock goes here
-}
foo :: Int
foo = ...
```
and `foo` is unused, then I get a code action to delete `foo`.

If I trigger this code action then the definition of `foo` is deleted by the haddock comment is left, even though it is attached to `foo`.

### Expected behaviour

I would expect the Haddock docstring to also get deleted.

### Actual behaviour

The Haddock docstring is not deleted.

### Debug information