RFR: 8351493: Revert build changes that are no longer needed [v2]

[Magnus Ihse Bursie]

> I compared the hermetic-java-runtime branch with mainline, and noticed some old build changes lingering, that are no longer needed. Furthermore, I checked a handful of other files and noticed a few spurious changes that just make the branch differ from mainline for no good reason. I also reverted those.
> 
> With this patch, the difference between hermetic-java-runtime and mainline gets even more minimal.

Magnus Ihse Bursie has updated the pull request incrementally with one additional commit since the last revision:

  Also remove added extra line

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

Changes:
  - all: https://git.openjdk.org/leyden/pull/47/files
  - new: https://git.openjdk.org/leyden/pull/47/files/a526a533..553f0629

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=leyden&pr=47&range=01
 - incr: https://webrevs.openjdk.org/?repo=leyden&pr=47&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/leyden/pull/47.diff
  Fetch: git fetch https://git.openjdk.org/leyden.git pull/47/head:pull/47

PR: https://git.openjdk.org/leyden/pull/47