Revert "libcore: Extend sun.misc.Unsafe presence in the Core Pla..."

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: I59d441272aefce7898e377b7c75a172ca23a5057
Exempt-From-Owner-Approval: revert
2 files changed