cubicweb #3299526 update on_fire_transition implementation to use _from_state_name [open]

cubicweb.predicates.on_fire_transition predicate accepts an optional and documented from_state_name parameter but doesn't use it.

Remove it or use it.

prioritynormal
typebug
done in<not specified>
load0.100
load left0.100
closed by<not specified>