RFR: 8368714: [BACKOUT] JDK-8368468 Split out everything but configure results from spec.gmk

[Daniel D. Daugherty]

This reverts commit de1f5a3c437ab4c6009f8be6f9f109ed36fb0b53.

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Commit messages:
 - 8368714: [BACKOUT] JDK-8368468 Split out everything but configure results from spec.gmk

Changes: https://git.openjdk.org/jdk/pull/27500/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27500&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8368714
  Stats: 938 lines in 12 files changed: 413 ins; 472 del; 53 mod
  Patch: https://git.openjdk.org/jdk/pull/27500.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27500/head:pull/27500

PR: https://git.openjdk.org/jdk/pull/27500