More XDAQ removal cleanups.

[ktf]

• Replace now missing headers with their CMSSW counterparts.
• Drop xdaq and related from BuildFiles.

[cmsbuild]

A new Pull Request was created by @ktf (Giulio Eulisse) for CMSSW_7_0_X.

More XDAQ removal cleanups.

It involves the following packages:

EventFilter/FEDInterface
EventFilter/Utilities

@mommsen, @emeschi can you please review it and eventually sign? Thanks.
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@ktf you are the release manager for this.

[ktf]

@emeschi I think those slipped through cracks, I've replaced them with the ones you imported in CMSSW from XDAQ in #662. Notice there are similarly named headers also in DataFormats/FEDRawData with slightly different content.

I'm merging this to test with a full matrix. Shout if not correct.