Fix improper use of clustersToSkip InputTag

[rovere]

Setting this input tag into the GroupedCkfTrajectoryBuilderESProducers will have no effect and is, de facto, misleading. No changes are expected in any distribution. This pull will silent the errors recently reported while running the reco sequence.

[cmsbuild]

A new Pull Request was created by @rovere (Marco Rovere) for CMSSW_7_1_X.

Fix improper use of clustersToSkip InputTag

It involves the following packages:

RecoTracker/IterativeTracking

@nclopezo, @cmsbuild, @anton-a, @thspeer, @slava77, @Degano can you please review it and eventually sign? Thanks.
@ghellwig, @gpetruc, @GiacomoSguazzoni, @cerati this is something you requested to watch as well.
You can sign-off by replying to this message having '+1' in the first line of your reply.
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@nclopezo, @ktf you are the release manager for this.
You can merge this pull request by typing 'merge' in the first line of your comment.

[rovere]

FYI @thspeer
I guess this pull will conflict with similar changes you have locally done in your branch. My idea is that you can rebase your work once this PR will be integrated. I hope this will not cause too much troubles.

Ciao.

[slava77]

Hi Marco,

For the future reference, please add the error message and a link if available to where it was reported.
Thank you.

[cmsbuild]

+1
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-2739/375/summary.html

[rovere]

Ciao @slava77 ,
for sure I will in future. The error messages are these[1] and have been reported to tracking POGs via private emails, hence I have no link to attach to this PR.

Ciao,
Marco.

[1]

ERROR: 24BaseCkfTrajectoryBuilder with label
detachedTripletStepTrajectoryBuilder has a clustersToSkip parameter set
ERROR: 24BaseCkfTrajectoryBuilder with label initialStepTrajectoryBuilder
has a clustersToSkip parameter set

[slava77]

+1

for #2739 49cffe8
no regressions based on jenkins

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_1_X IBs unless changes (tests are also fine). @nclopezo, @ktf can you please take care of it?