Restructure `foo ? bar : false` as `foo && bar`

app/finders/issuable_finder.rb

@@ -288,21 +288,16 @@ class IssuableFinder
 
   def use_subquery_for_search?
     strong_memoize(:use_subquery_for_search) do
-      if attempt_group_search_optimizations?
+      attempt_group_search_optimizations? &&
         Feature.enabled?(:use_subquery_for_group_issues_search, default_enabled: false)
-      else
-        false
-      end
     end
   end
 
   def use_cte_for_search?
     strong_memoize(:use_cte_for_search) do
-      if attempt_group_search_optimizations? && !use_subquery_for_search?
+      attempt_group_search_optimizations? && 
+        !use_subquery_for_search? &&
         Feature.enabled?(:use_cte_for_group_issues_search, default_enabled: true)
-      else
-        false
-      end
     end
   end