delete release dir

yxj

2021-08-19 9bfe662d24cc32bf637e7352358dcd30ff43f96c

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!Microsoft.Build.Tasks.SystemState
    fileStateSystem.Collections.Hashtable    System.Collections.Hashtable
LoadFactorVersionKeyComparerHashSizeKeysValuesSystem.OrdinalComparerìQ8?            System.OrdinalComparer
_ignoreCase