Remove unused file

Signed-off-by: Mathieu Barbin <[email protected]>

.github/workflows/ci.yml

@@ -32,8 +32,7 @@ jobs:
           - ocaml-compiler: 4.10.x
             os: macos-latest
           # OCaml 4.08.x: skipping macos & windows (fail)
-          # Keep the minimal version of OCaml in sync in here, `dune-project`
-          # and `dune-workspace.dev`.
+          # Keep the minimal version of OCaml in sync in here and `dune-project`
           - ocaml-compiler: 4.08.x
             os: ubuntu-latest
 

Makefile

@@ -17,9 +17,6 @@ reinstall: uninstall install
 clean:
 	dune clean
 
-all-supported-ocaml-versions:
-	dune runtest --workspace dune-workspace.dev
-
 release:
 	dune-release tag
 	dune-release distrib --skip-build --skip-lint --skip-tests -n pp