Revert "Try to debug GLIBCXX error. WILL BE REVERTED."

[geekosaur]

Template B: This PR does not modify behaviour or interface

E.g. the PR only touches documentation or tests, does refactorings, etc.

Include the following checklist in your PR:

• Patches conform to the coding conventions.
• Is this a PR that fixes CI? If so, it will need to be backported to older cabal release branches (ask maintainers for directions).

[geekosaur]

Oh, actually it's because I forgot to switch the branch it was based on so it was going into master. Oops. This one has just the revert commit, like it should.

[Mikolaj]

LGTM