Intentionally drop meaningless cache (#5)

* Intentionally drop meaningless cache

#3 (comment)

* This code also exists for cache

.github/workflows/ci-dev.yml

@@ -40,27 +40,11 @@ jobs:
     needs: [get-version]
     steps:
       - uses: actions/checkout@v3
-      - name: 'Cache Nix store'
-        uses: actions/cache@v3
-        id: nix-cache
-        with:
-          path: /tmp/nixcache
-          key: ${{ runner.os }}-nix_${{ needs.get-version.outputs.current }}
       - uses: cachix/install-nix-action@v21
         with:
           nix_path: nixpkgs=https://github.com/NixOS/nixpkgs/archive/${{ needs.get-version.outputs.current }}.tar.gz
-      # https://github.com/cachix/install-nix-action/issues/56#issuecomment-1240991760
-      - name: 'Import Nix store cache'
-        if: ${{ steps.nix-cache.outputs.cache-hit  == 'true' }}
-        run: 'nix-store --import < /tmp/nixcache'
       - run: nix-build
-        if: ${{ steps.nix-cache.outputs.cache-hit  != 'true' }}
       - name: Log current versions
         run: nix-shell --run 'task versions'
-      - name: 'Export Nix store cache'
-        if: ${{ steps.nix-cache.outputs.cache-hit  != 'true' }}
-        run: |
-          readarray -t paths < <(find /nix/store -maxdepth 1 -name '*-*')
-          nix-store --export "${paths[@]}" > /tmp/nixcache
       - name: Run main task
         run: nix-shell --run 'task'