Remove unused action

Remove unused setup action for NuGet.

Author: martincostello

.github/workflows/build.yml

@@ -51,11 +51,6 @@ jobs:
       uses: actions/setup-dotnet@3e891b0cb619bf60e2c25674b222b8940e2c1c25 # v4.1.0
       id: setup-dotnet
 
-    - name: Setup NuGet
-      uses: nuget/setup-nuget@323ab0502cd38fdc493335025a96c8fdb0edc71f # v2.0.1
-      with:
-        nuget-version: '5.11.0'
-
     # Arcade only allows the revision to contain up to two characters, and GitHub Actions does not roll-over
     # build numbers every day like Azure DevOps does. To balance these two requirements, set the official
     # build ID to be the same format as the built-in default from Arcade, except with the revision number