RFR: Remove Config [v2]

[Robbin Ehn]

> For you to consider.
> - Adds 1-2ns (thaw+freeze) (<0.5%)
> - Passes t1-3 (no new issues found)
> - Reduces compilation time with over 30 seconds (15-20%).
> - Loom have the same compile time as vanilla jdk/jdk.

Robbin Ehn has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:

 - Merge branch 'fibers' into templates
 - Fixed jcheck WS error
 - Remove Config

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

Changes:
  - all: https://git.openjdk.java.net/loom/pull/110/files
  - new: https://git.openjdk.java.net/loom/pull/110/files/a023a127..07af4de3

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=loom&pr=110&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=loom&pr=110&range=00-01

  Stats: 5347 lines in 369 files changed: 2615 ins; 737 del; 1995 mod
  Patch: https://git.openjdk.java.net/loom/pull/110.diff
  Fetch: git fetch https://git.openjdk.java.net/loom pull/110/head:pull/110

PR: https://git.openjdk.java.net/loom/pull/110