Remove finished check from animationDidStop
Remove finished check from animationDidStop

Fixes situation where after calling dismissCalloutAnimated:YES before
presentCallout... would result unwanted behaviour because other
animation is still on layer.

nfarina/calloutview,Petvetbook/calloutview,Aiwis/calloutview,nfarina/calloutview,Suninus/calloutview,Petvetbook/calloutview,dmiedema/calloutview,Suninus/calloutview,mapbox/SMCalloutView,XBeg9/calloutview,XBeg9/calloutview,mapbox/SMCalloutView,Aiwis/calloutview,dmiedema/calloutview,u10int/calloutview,u10int/calloutview