git: openjdk/jdk: 8252835: Revert fix for JDK-8246051

[David Holmes]

Changeset: 276fcee7
Author:    Wang Zhuo <wzhuo at openjdk.org>
Committer: David Holmes <dholmes at openjdk.org>
Date:      2020-09-28 07:34:01 +0000
URL:       https://git.openjdk.java.net/jdk/commit/276fcee7

8252835: Revert fix for JDK-8246051

Reviewed-by: psandoz, dholmes, mikael

! src/hotspot/share/prims/unsafe.cpp
- test/hotspot/jtreg/compiler/unsafe/TestUnsafeUnalignedSwap.java