[MERGE #5467 @dilijev] Remove unused file lib/wabt/ubsan.blacklist
[MERGE #5467 @dilijev] Remove unused file lib/wabt/ubsan.blacklist

Merge pull request #5467 from dilijev:remove-blacklist

Microsoft/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore