Removed deprecated Lwt text dependency

Closes: #2894
Merge pull request #2966 from Leonidas-from-XIV/bugfix/no-lwt-text

Removed deprecated Lwt text dependency
Revert "core 112.01.00 does not builde on i686"
Merge pull request #2968 from ocaml/revert-2956-core_kernel-112.01.00-no-i686

Revert "core 112.01.00 does not builde on i686"