[llvm] [OCaml] Remove test with invalid usage of #dbg_declare (PR #134508)

[Nikita Popov via llvm-commits]

nikic wrote:

> Is there any sort of replacement test that I would need to add? AFAIK this test is about adding #dbg_declare to function parameters, but the given parameter is not a pointer, and it should only be used to describe pointers.

Maybe change the type of the parameter to ptr?

https://github.com/llvm/llvm-project/pull/134508