ci: Drop --no-build check

Weird that this doesn't work but the full check does however I'm
not complaining.

.github/workflows/ci.yml

@@ -7,13 +7,6 @@ on:
     branches: [ master ]
 
 jobs:
-  check:
-    name: nix flake check --no-build
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: cachix/install-nix-action@v22
-      - run: nix flake check --no-build
   test:
     name: nix flake check
     runs-on: ubuntu-latest