fix track cluster remover template definition

[mtosi]

in the migration from HLTTrackClusterRemover to TrackClusterRemover
I realized that in confDB we do not have the TrackClusterRemover template :(

it turned out to be due to the fact that no cfi is available for this module
moreover, this module is used by explicitly defining it in all tracking cff files !

=> this PR is meant for

1. add trackClusterRemover_cfi.py file
   w/ default parameters which should be in as general as possible
2. fix the handling of the input parameters w/in TrackClusterRemover
3. update all (?) python configuration where there is an explicit definition of the TrackClusterRemover module,
   in order to instead import-and-clone the default template

this PR is needed for then letting the HLT config being migrated to use TrackClusterRemover (which is multithread safe), instead of HLTTrackClusterRemover which should not be maintained anymore ...

[cmsbuild]

A new Pull Request was created by @mtosi (mia tosi) for CMSSW_7_3_X.

fix track cluster remover template definition

It involves the following packages:

RecoLocalTracker/SubCollectionProducers
RecoParticleFlow/PFTracking
RecoTracker/ConversionSeedGenerators
RecoTracker/IterativeTracking

@cmsbuild, @nclopezo, @StoyanStoynev, @slava77 can you please review it and eventually sign? Thanks.
@ghellwig, @appeltel, @mmarionncern, @makortel, @forthommel, @yduhm, @GiacomoSguazzoni, @gbenelli, @rovere, @lgray, @nickmccoll, @jlagram, @gpetruc, @cerati, @VinInn, @threus, @dgulhan, @bachtis, @venturia this is something you requested to watch as well.
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@nclopezo you are the release manager for this.
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[cmsbuild]

+1
Tested at: b17cb4d
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-6595/1168/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-6595/1168/summary.html

[perrotta]

@mtosi : did you provide a 74X copy of this PR?
Could you please do so, if not?

[slava77]

Hi Andrea, if HLT proposes #6618 as a combined PR, maybe you could stick to a single one?

[slava77]

@VinInn @rovere @cerati
Please take note of these comments and possibly clean up in not so distant future. (not this PR)
Thank you.

[slava77]

+1

for #6595 b17cb4d

tested as a part of #6618 (using 730pre3 as a baseline, in test area sign468
no differences in RECO outputs based on monitored quantities.
(while the #6681 is stuck a bit on unrelated subject, this should keep moving along)

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_3_X IBs unless changes (tests are also fine). This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @nclopezo, @ktf, @smuzaffar

[davidlange6]

+1