GeometryIdeal -> GeometryRecoDB in unit tests

[davidlange6]

Update one AT unit test that I missed yesterday - now fixed

[cmsbuild]

A new Pull Request was created by @davidlange6 (David Lange) for CMSSW_7_4_X.

GeometryIdeal -> GeometryRecoDB in unit tests

It involves the following packages:

TopQuarkAnalysis/TopHitFit

@cmsbuild, @vadler, @nclopezo, @monttj can you please review it and eventually sign? Thanks.
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@Degano you are the release manager for this.
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