RFR: 8251358: Clean up Access configuration after Shenandoah barrier change [v3]

[Aditya Mandaleeka]

> This change removes a bunch of code that is no longer necessary after the Shenandoah barrier changes, including the
> `SUPPORT` macros in barrierSetConfig.hpp and code using them. `Access::resolve` and associated code have also been
> removed, and callers have been modified.  Testing done:
> tier1
> hotspot_gc_shenandoah

Aditya Mandaleeka has updated the pull request incrementally with one additional commit since the last revision:

  Rename a few more _raw functions.

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/146/files
  - new: https://git.openjdk.java.net/jdk/pull/146/files/45d77581..277e7e0d

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=146&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=146&range=01-02

  Stats: 14 lines in 6 files changed: 0 ins; 0 del; 14 mod
  Patch: https://git.openjdk.java.net/jdk/pull/146.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/146/head:pull/146

PR: https://git.openjdk.java.net/jdk/pull/146