Clean revert of [JDK-8371643](https://bugs.openjdk.org/browse/JDK-8371643) to reduce CI noise.
`runtime/cds/appcds/methodHandles/MethodHandlesSpreadArgumentsTest.java` with `-XX:+UseZGC -XX:+UseCompactObjectHeaders` fails 10% of the time. After the revert, the test passes 2K runs. ------------- Commit messages: - Revert "8371643: Remove ThreadLocalAllocBuffer::_reserve_for_allocation_prefetch" Changes: https://git.openjdk.org/jdk/pull/28679/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28679&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8373145 Stats: 69 lines in 7 files changed: 66 ins; 0 del; 3 mod Patch: https://git.openjdk.org/jdk/pull/28679.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/28679/head:pull/28679 PR: https://git.openjdk.org/jdk/pull/28679
