Do not coerce the SerializedAttributeTest tests (#1128)

Author: aidanharan

test/cases/coerced_tests.rb

@@ -2595,8 +2595,3 @@ class ConnectionHandlersMultiPoolConfigTest < ActiveRecord::TestCase
     end
   end
 end
-
-# TODO: Need to uncoerce the 'SerializedAttributeTest' tests before releasing adapter for Rails 7.1
-class SerializedAttributeTest < ActiveRecord::TestCase
-  coerce_all_tests!
-end