feat: get-rid-of-extra-map-nested-rule-function

Author: Zaimwa9

lib/flagsmith/engine/evaluation/mappers/segments.rb

@@ -52,7 +52,7 @@ def self.map_rule(rule)
             {
               type: rule.type,
               conditions: map_conditions(rule.conditions),
-              rules: map_nested_rules(rule.rules)
+              rules: (rule.rules || []).map { |nested_rule| map_rule(nested_rule) }
             }
           end
 
@@ -61,12 +61,6 @@ def self.map_conditions(conditions)
               { property: condition.property, operator: condition.operator, value: condition.value }
             end
           end
-
-          def self.map_nested_rules(rules)
-            return [] unless rules&.any?
-
-            rules.map { |nested_rule| map_rule(nested_rule) }
-          end
         end
       end
     end