1 files changed, 0 insertions, 12 deletions
diff --git a/activerecord/lib/active_record/associations/has_association.rb b/activerecord/lib/active_record/associations/has_association.rb
index 4407e2ea9a..0ecdb696ea 100644
--- a/activerecord/lib/active_record/associations/has_association.rb
+++ b/activerecord/lib/active_record/associations/has_association.rb
@@ -37,18 +37,6 @@ module ActiveRecord
           conditions << Arel.sql(sql_conditions) if sql_conditions
           aliased_table.create_and(conditions)
         end
-
-        if RUBY_VERSION < '1.9.2'
-          # Array#flatten has problems with recursive arrays before Ruby 1.9.2.
-          # Going one level deeper solves the majority of the problems.
-          def flatten_deeper(array)
-            array.collect { |element| (element.respond_to?(:flatten) && !element.is_a?(Hash)) ? element.flatten : element }.flatten
-          end
-        else
-          def flatten_deeper(array)
-            array.flatten
-          end
-        end
     end
   end
 end