Reland "[llvm-mt] Use XmlDeleter to free xmlFreeDoc""#128579

vitalybuka merged 2 commits intomainllvm/llvm-project:mainfrom

revert-128578-revert-128472-users/vitalybuka/spr/llvm-mt-use-xmldeleter-to-free-xmlfreedocllvm/llvm-project:revert-128578-revert-128472-users/vitalybuka/spr/llvm-mt-use-xmldeleter-to-free-xmlfreedocCopy head branch name to clipboard