backed-map:: removed call to handle_precision_errors

arbitrile.cpp

@@ -1615,7 +1615,6 @@ struct hrmap_arbi : hrmap {
           throw hr_exception("already connected!");
           }
         h->c.connect(d, p2.first, co1.eid, co1.mirror);
-        bm.handle_precision_errors(p2.first);
         return p2.first;
         }
       }

archimedean.cpp

@@ -693,7 +693,6 @@ struct hrmap_archimedean : hrmap {
           while(skip_digons(hs, -1)) hs--;
           connectHeptagons(hi, hs);
           connect_digons_too(hi, hs);
-          bm.handle_precision_errors(h);
           return h->move(d);
           }
         }