Revert Tracking modules back to stream modules

[Dr15Jones]

The static analyzer is reporting that the thread safety issues
with the tracking modules has been fixed so we should be able to
run these as stream modules.

[cmsbuild]

A new Pull Request was created by @Dr15Jones (Chris Jones) for CMSSW_7_1_X.

Revert Tracking modules back to stream modules

It involves the following packages:

RecoTracker/CkfPattern
RecoTracker/TkSeedGenerator

@nclopezo, @cmsbuild, @anton-a, @thspeer, @slava77, @Degano can you please review it and eventually sign? Thanks.
@ghellwig, @GiacomoSguazzoni, @rovere, @gpetruc, @cerati, @venturia 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.
You can reject by replying to this message having '-1' in the first line of your reply.
@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.

[cmsbuild]

+1
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-3825/1465/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-3825/1465/summary.html

[ktf]

Bypassing reco approval. Complain if not ok.

[slava77]

+1

for #3825 69ddbb8

tested in CMSSW_7_1_X_2014-05-12-0200 (test area sign369decB)
no changes observed in monitored quantities

[VinInn]

ok, now we should see real parallel processing...