This reverts commit d0c7c21f5c2816d0f943e4c528ca84966cf763fa.
Fix out-of-range exception caused in IB test. Was using wrong 'muons collection instead of 'muonTracks'.
Fix dimuon thresholds.
Fix a leakage in HLTExoticaSubAnalysis.cc
Merge pull request #5715 from perrotta/ExoValDevBackportedTo72X

EXO Val Dev backported to 72X