remove caching

.gitea/workflows/deploy.yaml

@@ -12,16 +12,6 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - uses: cachix/install-nix-action@v31
-      - name: Restore and save Nix store
-        uses: http://github.com/nix-community/cache-nix-action@v6
-        with:
-          primary-key: nix-${{ runner.os }}-colmena
-          restore-prefixes-first-match: nix-${{ runner.os }}-
-          gc-max-store-size-linux: 1G
-          purge: false
-          purge-prefixes: nix-${{ runner.os }}-
-          purge-created: 60000
-          purge-primary-key: never
       - uses: actions/checkout@v4
       - name: Install SSH key
         uses: shimataro/ssh-key-action@v2