RFR: 8288935: Remove excessive includes introduced in loom [v3]

[Ioi Lam]

> Some header files introduced in loom has unnecessary #includes. 
> 
> Also, some hpp files have complex inline functions that should be moved to either inline.hpp or cpp files.

Ioi Lam has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains seven commits:

 - fixed build; remove unnecessary include
 - Merge branch 'master' of https://urldefense.com/v3/__https://github.com/openjdk/jdk__;!!ACWV5N9M2RV99hQ!InBSZkBKnpAGxjn08D8v6X1v3UCzO-bNQG1nlcIB55IT02B5vaiPmlwp7eXSFpHjaviSfs0Rud3dj8WnEujP$  into 8288935-fix-loom-excessive-includes
 - Merge branch 'master' into 8288935-fix-loom-excessive-includes
 - @stefank comments
 - fixed GHA
 - step2
 - temp

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Changes: https://git.openjdk.org/jdk/pull/9231/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=9231&range=02
  Stats: 94 lines in 12 files changed: 48 ins; 42 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/9231.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9231/head:pull/9231

PR: https://git.openjdk.org/jdk/pull/9231