Revert "[ROOT6] RPageSinkFile is now in ROOT::Experimental::Internal namespace"

[iarspider]

Reverts #44032 - ROOT update cms-sw/cmsdist#9025 should be merged first

[cmsbuild]

cms-bot internal usage

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-44057/38997

• This PR adds an extra 16KB to repository

[cmsbuild]

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

It involves the following packages:

• PhysicsTools/NanoAOD (xpog)

@vlimant, @hqucms, @cmsbuild can you please review it and eventually sign? Thanks.
@gpetruc, @AnnikaStein this is something you requested to watch as well.
@rappoccio, @sextonkennedy, @antoniovilela you are the release manager for this.

cms-bot commands are listed here

[iarspider]

please test for CMSSW_14_1_ROOT6_X

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-ed2548/37623/summary.html
COMMIT: 3fd2023
CMSSW: CMSSW_14_1_ROOT6_X_2024-02-21-2300/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmssw/44057/37623/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially removed 101 lines from the logs
• Reco comparison results: 911 differences found in the comparisons
• DQMHistoTests: Total files compared: 48
• DQMHistoTests: Total histograms compared: 3245365
• DQMHistoTests: Total failures: 6602
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3238741
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 47 files compared)
• Checked 200 log files, 161 edm output root files, 48 DQM output files
• TriggerResults: no differences found

[vlimant]

+1
technical

[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. @antoniovilela, @sextonkennedy, @rappoccio (and backports should be raised in the release meeting by the corresponding L2)

[rappoccio]

+1