Quietly return when producer fails to find input collection

[davidsheffield]

The scouting muon and Egamma producers were producing error manages when they could not find products not created by CaloScouting. Removed error messages. Add empty scouting collection and immediately returns when collection is not found.

[cmsbuild]

A new Pull Request was created by @davidsheffield (David Sheffield) for CMSSW_8_1_X.

It involves the following packages:

HLTrigger/Egamma
HLTrigger/Muon

@Martin-Grunewald, @perrotta, @cmsbuild, @fwyzard, @davidlange6 can you please review it and eventually sign? Thanks.
@battibass, @abbiendi, @jhgoh, @Martin-Grunewald, @HuguesBrun, @trocino this is something you requested to watch as well.
@slava77, @Degano, @smuzaffar you are the release manager for this.

cms-bot commands are list here #13028

[Martin-Grunewald]

please test
(remember to make a 80X PR as well).

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/12678/console

[cmsbuild]

+1
Tested at: 5009ce8
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-14278/12678/summary.html

The following merge commits were also included on top of IB + this PR after doing git cms-merge-topic:
e2edf29
483bf4f
543cf01
8f622e0
e7f22ce
dc3f1e5
70d925e
687abbc
987fab5
644848d
040cd8e
You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-14278/12678/git-log-recent-commits
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-14278/12678/git-merge-result

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-14278/12678/summary.html

[Martin-Grunewald]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_8_1_X IBs (tests are also fine). This pull request requires discussion in the ORP meeting before it's merged. @slava77, @davidlange6, @Degano, @smuzaffar