Delete unused build definition

monaco-editor/azure-pipelines.yml

@@ -1,21 +0,0 @@
-# Builds and publishes the Monaco Editor website
-
-pool:
-  vmImage: 'ubuntu-latest'
-
-steps:
-  - task: NodeTool@0
-    inputs:
-      versionSpec: '12.x'
-    displayName: 'Install Node.js'
-
-  - script: |
-      npm install
-      npm run build-website
-    displayName: 'Build website'
-
-  - script: |
-      ./build/publish-website.sh
-    env:
-      GITHUB_TOKEN: $(GITHUB_TOKEN)
-    displayName: 'Publish website'