Forward port of remaining CMSSW_7_2_X bits into CMSSW_7_3_X.

yes, Alessandro changed this accordingly. 

On Oct 6, 2014, at 7:08 PM, Giulio Eulisse <notifications@github.com>
 wrote:

> In Validation/EventGenerator/src/HepMCValidationHelper.cc:
> 
> > @@ -185,10 +184,9 @@ namespace HepMCValidationHelper {
> >      for (unsigned int i = 0; i < taus.size(); ++i){
> >        std::vector<const HepMC::GenParticle*> taudaughters;
> >        findDescendents(taus[i], taudaughters);
> > -      assert(taudaughters.size()>0);
> > -      if ( taudaughters.size()==0 ) {
> > +      if ( taudaughters.size()<=0 ) {
> 
> taudaughters.size() is never < 0...
> 
> —
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