Fix 2 param best_item

Author: Frankie Robertson

src/next_item_rules/prelude/next_item_rule.jl

@@ -51,3 +51,7 @@ function ItemStrategyNextItemRule(bits...;
         return ItemStrategyNextItemRule(strategy, criterion)
     end
 end
+
+function best_item(rule::NextItemRule, tracked_responses::TrackedResponses)
+    best_item(rule, tracked_responses, tracked_responses.item_bank)
+end

src/next_item_rules/strategies/exhaustive.jl

@@ -40,11 +40,4 @@ function best_item(
         items
 ) where {ItemCriterionT <: ItemCriterion}
     exhaustive_search(rule.criterion, responses, items)[1]
-end
-
-function best_item(
-        rule::ItemStrategyNextItemRule{ExhaustiveSearch, ItemCriterionT},
-        responses::TrackedResponses
-) where {ItemCriterionT <: ItemCriterion}
-    best_item(rule, responses, responses.item_bank)
-end
+end