Remove unneeded THcScalerEvtHandler::AddEventType

  There was already an AddEvtType in the base class.
  Should use SetEvtType to set the event type.  If the handler is to
  look for more than one event type, use AddEvtType for the extra
  event types.

src/THcScalerEvtHandler.cxx

@@ -273,10 +273,6 @@ Int_t THcScalerEvtHandler::Analyze(THaEvData *evdata)
   return 1;
 }
 
-void THcScalerEvtHandler::AddEventType(Int_t evtype)
-{
-  eventtypes.push_back(evtype);
-}
 
 THaAnalysisObject::EStatus THcScalerEvtHandler::Init(const TDatime& date)
 {

src/THcScalerEvtHandler.h

@@ -34,7 +34,6 @@ public:
    virtual ~THcScalerEvtHandler();
 
    Int_t Analyze(THaEvData *evdata);
-   virtual void AddEventType(Int_t evtype);
    virtual EStatus Init( const TDatime& run_time);
    virtual Int_t End( THaRunBase* r=0 );
    virtual void SetUseFirstEvent(Bool_t b = kFALSE) {fUseFirstEvent = b;}