Update build.yml to remove demo build step

Author: jongalloway

.github/workflows/build.yml

@@ -100,9 +100,6 @@ jobs:
         fi
       continue-on-error: false
 
-    - name: Build demo application
-      run: dotnet build demo --configuration Release --no-restore --verbosity minimal
-
     - name: Publish test results
       uses: dorny/test-reporter@v2
       if: success() || failure()
@@ -268,4 +265,4 @@ jobs:
         prerelease: ${{ contains(steps.version.outputs.version, '-') }}
         tag_name: ${{ github.ref_name }}
       env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}