Remove haskell and lsp-bench (#7)

* delete lsp-bench

* remove haskell

* update the flake lock

Author: EduardoRFS

.gitmodules

@@ -2,10 +2,6 @@
 	path = vendors/tezos-ligo
 	url = https://gitlab.com/ligolang/tezos-ligo.git
 	branch = v21-ligo
-[submodule "tools/lsp-bench/projects/submodules/checker"]
-	path = tools/lsp-bench/projects/submodules/checker
-	url = https://github.com/marigold-dev/checker-ligo.git
-	branch = main
 [submodule "vendors/lltz"]
 	path = vendors/lltz
 	url = https://github.com/trilitech/lltz.git