Remove EMH physics list

It was added in October 2022 by commit 9edb037 to try out G4HepEm
via the G4HepEmProcess interface. For maximum gain and complete physics
(including gamma-lepto-nuclear interactions), it is better to integrate
via the G4VTrackingManager interface as implemented by commit 7a82cb8
in March 2023 (and soon to be updated).

Author: hahnjo

SimG4Core/PhysicsLists/interface/CMSEmStandardPhysicsEMH.h

@@ -3,7 +3,6 @@
 #include "DummyPhysics.h"
 #include "FTFCMS_BIC.h"
 #include "FTFPCMS_BERT.h"
-#include "FTFPCMS_BERT_EMH.h"
 #include "FTFPCMS_BERT_EML.h"
 #include "FTFPCMS_BERT_EMM.h"
 #include "FTFPCMS_BERT_EMN.h"
@@ -30,8 +29,6 @@ typedef FTFCMS_BIC FTF_BIC;
 DEFINE_PHYSICSLIST(FTF_BIC);
 typedef FTFPCMS_BERT FTFP_BERT;
 DEFINE_PHYSICSLIST(FTFP_BERT);
-typedef FTFPCMS_BERT_EMH FTFP_BERT_EMH;
-DEFINE_PHYSICSLIST(FTFP_BERT_EMH);
 typedef FTFPCMS_BERT_EML FTFP_BERT_EML;
 DEFINE_PHYSICSLIST(FTFP_BERT_EML);
 typedef FTFPCMS_BERT_EMM FTFP_BERT_EMM;