Revert "art: Extend sun.misc.Unsafe presence in the Core Platfor..."

Revert submission 1242749-oth-cp-unsafe

Reason for revert: breaks build of aosp_walleye-userdebug_RBE-RemoteExec (linux)
Reverted Changes:
I6b3783f6b:art: Extend sun.misc.Unsafe presence in the Core P...
I082c66b07:libcore: Extend sun.misc.Unsafe presence in the Co...

Change-Id: I54673aa6db20d5f75991cd4a05754b9da70a5894
Exempt-From-Owner-Approval: revert
1 file changed