Fix too aggressive cleanup of dependencies.

[ktf]

No description provided.

[ktf]

Tested locally. Everything compiles.

[cmsbuild]

A new Pull Request was created by @ktf (Giulio Eulisse) for CMSSW_7_1_X.

Fix too aggressive cleanup of dependencies.

It involves the following packages:

DataFormats/TauReco

@nclopezo, @cmsbuild, @anton-a, @thspeer, @slava77, @Degano can you please review it and eventually sign? Thanks.
@jpavel this is something you requested to watch as well.
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@nclopezo, @ktf you are the release manager for this.
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