remove opam dependencies, broken currently

.github/workflows/opam-dependencies.yml

@@ -1,33 +0,0 @@
-name: Opam Dependencies
-
-on:
-  pull_request:
-  push:
-  #schedule:
-    # Prime the caches every Monday
-    #- cron: 0 1 * * MON
-
-jobs:
-  build:
-    strategy:
-      fail-fast: false
-      matrix:
-        os:
-          - ubuntu-latest
-        ocaml-compiler:
-          - 4.14.x
-
-    runs-on: ${{ matrix.os }}
-
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v3
-
-      - name: Set-up OCaml
-        uses: ocaml/setup-ocaml@analysis
-        with:
-          ocaml-compiler: "5.0"
-          allow-prelease-opam: true
-
-      - name: Do the analysis
-        uses: ocaml/setup-ocaml/analysis@analysis