[gen] Remove the check-fmt in diy CI.

Author: Shale Xiong

.github/workflows/make-test-diy.yml

@@ -54,24 +54,3 @@ jobs:
       - run: opam exec -- make build DUNE_PROFILE=dev
 
       - run: opam exec -- make diy-test DUNE_PROFILE=dev
-
-  check-fmt:
-    name: check format
-
-    runs-on: ubuntu-latest
-
-    env:
-      DUNE_CACHE: enabled-except-user-rules
-
-    steps:
-      - name: Checkout tree
-        uses: actions/checkout@v4
-
-      - name: Set-up OCaml
-        uses: ocaml/setup-ocaml@v3
-        with:
-          ocaml-compiler: ocamlformat.0.28.1
-          dune-cache: true
-
-      - run: opam exec -- dune fmt
-