Remove old unused update changelog script (#23415)
Remove old unused update changelog script (#23415)

Co-authored-by: Wes Haggard <d598ed404a9a39e5ca39f22624afbc827cbec5f5@microsoft.com>
AsrOneSdk/azure-sdk-for-net,AsrOneSdk/azure-sdk-for-net,AsrOneSdk/azure-sdk-for-net,AsrOneSdk/azure-sdk-for-net