Honour or remove "maxNumberOfProblems" configuration option

[lukel97]

As I was looking through the VS Code extensions API documentation, I found that the maxNumberOfProblems configuration option is lifted straight from the example extension that they provide. It looks like it may have been accidentally leftover when setting up the boilerplate

I'm not sure how useful such a configuration option is in practice, and does haskell-language-server/ghcide still support this?

[alanz]

I am pretty sure it used to, in hie.

[jneira]

From a quick search in the hls repo, it seems it is not being used at all so we should either honour it or remove it from here and the vscode extension configuration

[ndmitchell]

I'd rather delete it - I doubt anyone sets it custom, and less configuration is always less testing.