RFR: 8354937: Cleanup some sparc related coding in os_linux

Wed Nov 5 08:50:20 UTC 2025

There is still some SPARC related coding remaining in os_linux, but we do not support Linux on SPARC for quite some time.

(there is more SPARC coding for detecting Sparc shared libs but I kept, that for now; not sure how important this is these days see https://github.com/openjdk/jdk/blob/master/src/hotspot/os/linux/os_linux.cpp#L1762  )

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Commit messages:
 - JDK-8354937

Changes: https://git.openjdk.org/jdk/pull/28143/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28143&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8354937
  Stats: 7 lines in 1 file changed: 0 ins; 6 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/28143.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28143/head:pull/28143

PR: https://git.openjdk.org/jdk/pull/28143