TrigHypothesis: Package cleanup (part 1)

Cleanup several packages under Trigger/TrigHypothesis:

• cleanup cmake configuration and link dependencies
• remove CLHEP dependency where relevant
• enable flake8 where applicable
• delete obsolete job options

Trigger/TrigHypothesis/TrigLongLivedParticlesHypo/CMakeLists.txt

@@ -11,7 +11,7 @@ atlas_add_component( TrigLongLivedParticlesHypo
                      src/*.cxx
                      src/components/*.cxx
                      INCLUDE_DIRS ${TDAQ-COMMON_INCLUDE_DIRS}
-                     LINK_LIBRARIES ${COMMON_LIBRARIES-CaloEvent} CxxUtils GaudiKernel IRegionSelector InDetIdentifier InDetPrepRawData TDAQ TrigCaloEvent TrigInDetEvent TrigInterfacesLib TrigParticle TrigSteeringEvent TrigTimeAlgsLib TrkSpacePoint xAODEventInfo xAODJet xAODTracking xAODTrigger )
+                     LINK_LIBRARIES ${TDAQ-COMMON_LIBRARIES} CaloEvent CxxUtils GaudiKernel IRegionSelector InDetIdentifier InDetPrepRawData TrigCaloEvent TrigInDetEvent TrigInterfacesLib TrigParticle TrigSteeringEvent TrigTimeAlgsLib TrkSpacePoint xAODEventInfo xAODJet xAODTracking xAODTrigger )
 
 # Install files from the package:
 atlas_install_python_modules( python/*.py POST_BUILD_CMD ${ATLAS_FLAKE8} --extend-extensions=ATL900,ATL901 )