cubicweb-skm #466275 drop legacy behaviour of breadcrumbs [resolved]

should be now rewritten to use framework API

priorityminor
typebug
done in0.2
load0.500
load left0.000
closed by#e727f691a620 [R] drop legacy behaviour of breadcrumbs (Closes: #466275), #c852d771caf7 [R] drop legacy behaviour of breadcrumbs (Closes: #466275)