Removed unused headers from IOMC/ParticleGuns

[Dr15Jones]

PR description:

The headers removed are deprecated.

PR validation:

Code compiles.

[Dr15Jones]

please test

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-39612/32409

• This PR adds an extra 12KB to repository

[cmsbuild]

A new Pull Request was created by @Dr15Jones (Chris Jones) for master.

It involves the following packages:

• IOMC/ParticleGuns (generators)

@SiewYan, @mkirsano, @Saptaparna, @alberto-sanchez, @menglu21, @GurpreetSinghChahal can you please review it and eventually sign? Thanks.
@fabiocos, @grzanka this is something you requested to watch as well.
@perrotta, @dpiparo, @rappoccio you are the release manager for this.

cms-bot commands are listed here

[rappoccio]

Similar to #39609

[rappoccio]

See comment: #39609 (comment)

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-76802f/27996/summary.html
COMMIT: 6c1efbd
CMSSW: CMSSW_12_6_X_2022-10-04-1100/el8_amd64_gcc10
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmssw/39612/27996/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

@slava77 comparisons for the following workflows were not done due to missing matrix map:

• /data/cmsbld/jenkins/workspace/compare-root-files-short-matrix/data/PR-76802f/41834.0_TTbar_14TeV+2026D94+TTbar_14TeV_TuneCP5_GenSimHLBeamSpot14+DigiTrigger+RecoGlobal+HARVESTGlobal

Summary:

• No significant changes to the logs found
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 49
• DQMHistoTests: Total histograms compared: 3432650
• DQMHistoTests: Total failures: 0
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3432628
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 48 files compared)
• Checked 204 log files, 49 edm output root files, 49 DQM output files
• TriggerResults: no differences found

[perrotta]

merge
(removing unused and deprecated headers can be merged even without an explicit @cms-sw/generators-l2 signature, to clean up the long queue a bit)