Update azure-pipelines.yml

Author: jessehouwing

azure-pipelines.yml

@@ -80,7 +80,6 @@ stages:
         del -include "@types" -recurse BuildTasks\*\v*\node_modules
         del -include ".eslintrc" -recurse BuildTasks\*\v*\node_modules
         del -include "changelog.md" -recurse BuildTasks\*\v*\node_modules  
-        del -include "changelog.md" -recurse BuildTasks\*\v*\node_modules  
         del -include ".bin" -recurse BuildTasks\*\v*\node_modules  
       displayName: 'Delete unneeded files'