fix: remove unnecessary git credentials from CD

Author: janechu

azure-pipelines-cd.yml

@@ -48,12 +48,6 @@ extends:
           - checkout: self
             persistCredentials: "true"
 
-          - script: |
-              git config --global user.email webuisvc@microsoft.com
-              git config --global user.name "Microsoft WebUI Builds"
-              git remote set-url origin https://$(GH_TOKEN)@github.com/microsoft/webui.git
-            displayName: Configure git
-
           # Download npm tarballs, crate archives, and NuGet packages from the
           # GitHub release produced by the publish.yml GitHub Actions workflow.
           - script: |
@@ -71,7 +65,5 @@ extends:
                 --pattern "*.nupkg" \
                 --dir publish_artifacts_nuget/
             displayName: Download release artifacts
-            env:
-              GH_TOKEN: $(GH_TOKEN)
 
           - template: WebUI.Release.PipelineTemplate.yml@webuiPipelines  # Template reference