Remove github workflow for building

.github/workflows/build.yaml

@@ -1,27 +0,0 @@
-name: build
-on:
-  workflow_dispatch: # allows manual triggering
-  push:
-    branches:
-      - master
-      - update_flake_lock_action
-
-jobs:
-  build:
-    if: ${{ always() }}
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v3
-
-      - uses: cachix/install-nix-action@v20
-        with:
-          extra_nix_config: |
-            accept-flake-config = true
-            
-      - uses: cachix/cachix-action@v12
-        with:
-          name: aciceri-emacs
-          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
-
-      - run: nix --print-build-logs --verbose build