Duplicate header for fed_trailer.h

[davidlt]

While looking at output for validateJR comparison tests I noticed that we have two headers for the same (?) thing:

• https://github.com/cms-sw/cmssw/blob/master/EventFilter/FEDInterface/interface/fed_trailer.h#L22
• https://github.com/cms-sw/cmssw/blob/master/DataFormats/FEDRawData/src/fed_trailer.h#L31

ROOT Cling run-time complaint about struct redefinition: error: redefinition of 'fedh_struct'

The one in DataFormats/FEDRawData was done 12 years ago and commit mentioned that it should be temporary. The one in EventFilter/FEDInterface seems to be a better rewrite of old stuff.

[davidlt]

Ah, I already have filled a bug report for this back in 2016: #14353

[cmsbuild]

A new Issue was created by @davidlt .

@davidlange6, @Dr15Jones, @smuzaffar can you please review it and eventually sign/assign? Thanks.

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[smuzaffar]

assign daq

[cmsbuild]

New categories assigned: daq

@mommsen,@emeschi you have been requested to review this Pull request/Issue and eventually sign? Thanks

[mommsen]

This issue has been addressed with #21690 and could be closed.

[smuzaffar]

closing it as it has been fixed.