[VISUALIZATION] [GCC16] cleanup for unused variables

[smuzaffar]

Cleanup set but unused variables which are causing build errors for GCC16 IBs https://cmssdt.cern.ch/SDT/cgi-bin/showBuildLogs.py/el9_amd64_gcc16/www/tue/17.0-tue-23/CMSSW_17_0_X_2026-05-19-2300

[cmsbuild]

cms-bot internal usage

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-50989/49404

• There are other open Pull requests which might conflict with changes you have proposed:
  • File Fireworks/Core/src/CmsShowCommon.cc modified in PR(s): [Do not merge] Fixes for GCC16 #50988
  • File Fireworks/Core/src/FWModelChangeManager.cc modified in PR(s): [Do not merge] Fixes for GCC16 #50988
  • File Fireworks/ParticleFlow/plugins/FWPFCandidateWithHitsProxyBuilder.cc modified in PR(s): [Do not merge] Fixes for GCC16 #50988

[cmsbuild]

A new Pull Request was created by @smuzaffar for master.

It involves the following packages:

• Fireworks/Core (visualization)
• Fireworks/ParticleFlow (visualization)

@Dr15Jones, @alja, @cmsbuild, @makortel can you please review it and eventually sign? Thanks.
@alja this is something you requested to watch as well.
@ftenchini, @mandrenguyen, @sextonkennedy you are the release manager for this.

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[alja]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next master IBs after it passes the integration tests. This pull request will now be reviewed by the release team before it's merged. @ftenchini, @sextonkennedy, @mandrenguyen (and backports should be raised in the release meeting by the corresponding L2)