[vector] Undo workaround fix

[Viswanathan, Sandhya]

Please file below a patch which removes the workaround fix added [1] for ByteArray occasional crash:
http://cr.openjdk.java.net/~sviswanathan/vectorIntrinsics/UndoWorkaround/webrev.00/
Best Regards,
Sandhya

[1] https://mail.openjdk.java.net/pipermail/panama-dev/2020-April/008553.html
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From: "Viswanathan, Sandhya" <sandhya.viswanathan at intel.com>
Subject: RE: [vectorIntrinsics] ByteArray tests and fix
Date: Sat, 18 Apr 2020 00:19:40 +0000
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