Revert "Fixed destruction of Geant4 simulation"

[qliphy]

Reverts #35002 as this seems to cause IB failures, see discussed in #35002

[cmsbuild]

A new Pull Request was created by @qliphy (Qiang Li) for CMSSW_10_6_X.

It involves the following packages:

• SimG4Core/Application (simulation)

@cmsbuild, @civanch, @mdhildreth can you please review it and eventually sign? Thanks.
@makortel, @cvuosalo, @rovere, @bsunanda, @fabiocos, @slomeo this is something you requested to watch as well.
@perrotta, @dpiparo, @qliphy you are the release manager for this.

cms-bot commands are listed here

[qliphy]

@civanch @perrotta Please proceed if you are fine with this revert.

[qliphy]

enable threading

[qliphy]

please test

[civanch]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_10_6_X IBs after it passes the integration tests and once validation in the development release cycle CMSSW_12_1_X is complete. This pull request will now be reviewed by the release team before it's merged. @perrotta, @dpiparo, @qliphy (and backports should be raised in the release meeting by the corresponding L2)

[perrotta]

• Let see if this can help fixing the failures in the 10_6 IB

[perrotta]

(Let the tests finish first...)

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-4024d9/18095/summary.html
COMMIT: 6dc3219
CMSSW: CMSSW_10_6_X_2021-08-26-2300/slc7_amd64_gcc700
Additional Tests: THREADING
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmssw/35047/18095/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• No significant changes to the logs found
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 35
• DQMHistoTests: Total histograms compared: 3215686
• DQMHistoTests: Total failures: 1
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3215351
• DQMHistoTests: Total skipped: 334
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 34 files compared)
• Checked 143 log files, 29 edm output root files, 35 DQM output files
• TriggerResults: no differences found

[perrotta]

+1