remove unnecessary cloning of particleFlowDisplacedVertex and pfCandidateToVertexAssociation in met corrections (backport of #14744)

[slava77]

(copied from 81X description)
modules with (currently) identical PSets independent of MET correction settings were cloned unnecessarily: particleFlowDisplacedVertex and pfCandidateToVertexAssociation were cloned to
*Puppi and *NoHF instances.
The extra CPU consumed by these in PU35 ttbar MC is about 3% of total event processing time.

If future implementations need these to be different, cloning of these modules can be re-enabled.
If there was no lingering need to support scheduled execution and if these modules were not in endpaths,
a solution could have been easier (just drop from the original sequence definition).

No changes in final results are expected (none were observed in local tests)

[cmsbuild]

A new Pull Request was created by @slava77 (Slava Krutelyov) for CMSSW_8_0_X.

It involves the following packages:

PhysicsTools/PatAlgos
PhysicsTools/PatUtils

@cmsbuild, @cvuosalo, @slava77, @davidlange6 can you please review it and eventually sign? Thanks.
@TaiSakuma, @imarches, @ahinzmann, @acaudron, @mmarionncern, @rappoccio, @jdolen, @nhanvtran, @schoef, @ferencek, @gpetruc, @mariadalfonso, @pvmulder 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

[slava77]

@cmsbuild please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/13326/console

[cmsbuild]

+1
Tested at: 30298b0
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-14745/13326/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-14745/13326/summary.html

[slava77]

+1

for #14745 30298b0

• jenkins test confirm no changes in monitored quantities, no issues

[slava77]

@davidlange6
if there are no issues with this PR, it would help to merge in 80X to speedup promptreco by a few %