workflows/basic-eval: remove

This seems to be unused. It can be triggered manually, but is this
really done?

Is this superseded by the new eval checks or should we instead run this
regularly?

.github/workflows/basic-eval.yml

@@ -1,31 +0,0 @@
-name: Basic evaluation checks
-
-on:
-  workflow_dispatch
-  # pull_request:
-  #   branches:
-  #    - master
-  #    - release-**
-  # push:
-  #   branches:
-  #    - master
-  #    - release-**
-permissions:
-  contents: read
-
-jobs:
-  tests:
-    name: basic-eval-checks
-    runs-on: ubuntu-24.04
-    # we don't limit this action to only NixOS repo since the checks are cheap and useful developer feedback
-    steps:
-    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-    - uses: cachix/install-nix-action@08dcb3a5e62fa31e2da3d490afc4176ef55ecd72 # v30
-    - uses: cachix/cachix-action@ad2ddac53f961de1989924296a1f236fcfbaa4fc # v15
-      with:
-        # This cache is for the nixpkgs repo checks and should not be trusted or used elsewhere.
-        name: nixpkgs-ci
-        signingKey: '${{ secrets.CACHIX_SIGNING_KEY }}'
-    - run: nix --experimental-features 'nix-command flakes' flake check --all-systems --no-build
-    # explicit list of supportedSystems is needed until aarch64-darwin becomes part of the trunk jobset
-    - run: nix-build pkgs/top-level/release.nix -A release-checks --arg supportedSystems '[ "aarch64-darwin" "aarch64-linux" "x86_64-linux" "x86_64-darwin"  ]'