Delete ME eafter writing v3 73x

[deguio]

forward port of #5682 to 73

[cmsbuild]

A new Pull Request was created by @deguio for CMSSW_7_3_X.

Delete ME eafter writing v3 73x

It involves the following packages:

DQMServices/Components
DQMServices/Core

@nclopezo, @danduggan, @rovere, @cmsbuild, @deguio, @ojeda can you please review it and eventually sign? Thanks.
@barvic 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
Tested at: 092854b
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-5834/89/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-5834/89/summary.html

[deguio]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_3_X IBs unless changes (tests are also fine). @nclopezo, @ktf can you please take care of it?