remove check_deps.sh

[pfi79]

There is a check in GitHub Actions that completely replaces check_deps.sh and even better.

      - name: check go.mod
        run: |
          go mod tidy
          git diff --exit-code go.mod

      - name: check vendor
        run: |
          go mod vendor
          git diff --exit-code

This check records if someone has replaced the file in the vendor folder.
I believe that check_deps.sh not needed