Cleaning for upgrade to pythia8 305

[mkirsano]

PR description:

Cleanup by removing unused (obsolete) files that don't compile with the new version

PR validation:

Run tests in Pythia8Interface

if this PR is a backport please specify the original PR and why you need to backport that PR:

Before submitting your pull requests, make sure you followed this checklist:

• verify that the PR is really intended for the chosen branch
• verify that changes follow CMS Naming, Coding, And Style Rules
• verify that the PR passes the basic test procedure suggested in the CMSSW PR instructions

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-33898/22961

• This PR adds an extra 12KB to repository

[cmsbuild]

A new Pull Request was created by @mkirsano (Mikhail Kirsanov) for master.

It involves the following packages:

GeneratorInterface/Pythia8Interface

@SiewYan, @mkirsano, @cmsbuild, @GurpreetSinghChahal, @agrohsje, @alberto-sanchez can you please review it and eventually sign? Thanks.
@alberto-sanchez this is something you requested to watch as well.
@silviodonato, @dpiparo, @qliphy you are the release manager for this.

cms-bot commands are listed here

[smuzaffar]

please test

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-3574f5/15598/summary.html
COMMIT: a085c32
CMSSW: CMSSW_12_0_X_2021-06-02-2300/slc7_amd64_gcc900
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmssw/33898/15598/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

The workflows 140.53 have different files in step1_dasquery.log than the ones found in the baseline. You may want to check and retrigger the tests if necessary. You can check it in the "files" directory in the results of the comparisons

Summary:

• No significant changes to the logs found
• Reco comparison results: 1264 differences found in the comparisons
• DQMHistoTests: Total files compared: 37
• DQMHistoTests: Total histograms compared: 2650486
• DQMHistoTests: Total failures: 3669
• DQMHistoTests: Total nulls: 19
• DQMHistoTests: Total successes: 2646776
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: -45.703 KiB( 36 files compared)
• DQMHistoSizes: changed ( 140.53 ): -44.531 KiB Hcal/DigiRunHarvesting
• DQMHistoSizes: changed ( 140.53 ): -1.172 KiB RPC/DCSInfo
• Checked 155 log files, 37 edm output root files, 37 DQM output files
• TriggerResults: no differences found

[agrohsje]

+generators

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next master IBs (tests are also fine). This pull request will now be reviewed by the release team before it's merged. @silviodonato, @dpiparo, @qliphy (and backports should be raised in the release meeting by the corresponding L2)

[qliphy]

+1