[MERGE #3317 @dilijev] IntlICU: remove invalid assert: this failure is thrown as a JS RangeError.
[MERGE #3317 @dilijev] IntlICU: remove invalid assert: this failure is thrown as a JS RangeError.

Merge pull request #3317 from dilijev:intl-icu-gcl-assert

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