RFR: 8326085: Remove unnecessary UpcallContext constructor

Mon Apr 29 18:12:12 UTC 2024

Hi all, 

This PR removes the explicit constructor to UpcallContext (hotspot/share/prims/upcallLinker.cpp) that was added as workaround for [8286891](https://bugs.openjdk.org/browse/JDK-8286891). 

The minimum required version of XLC has since been bumped in [8325880](https://bugs.openjdk.org/browse/JDK-8325880), so we can remove this. 

Thanks, 
Sonia

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Commit messages:
 - 8326085: Remove unnecessary UpcallContext constructor

Changes: https://git.openjdk.org/jdk/pull/18982/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18982&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8326085
  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/18982.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18982/head:pull/18982

PR: https://git.openjdk.org/jdk/pull/18982