Trigger: Remove Run2 BLS code (ATR-22838)
Following the request in ATR-22838. The old BLS trigger hypos are removed saving library space and compilation time.
BEFORE:
7.5M ./x86_64-centos7-gcc8-opt/lib/libTrigBphysHypo.so
377M ./x86_64-centos7-gcc8-opt/lib/libTrigBphysHypo.so.dbg
AFTER:
2.4M ./x86_64-centos7-gcc8-opt/lib/libTrigBphysHypo.so
76M ./x86_64-centos7-gcc8-opt/lib/libTrigBphysHypo.so.dbg
@tursom @lyubushk please check (I've kept trigUtil because I think a small common method file may be useful)