In MDL-74600 the following Report builder methods were deprecated:

• core_reportbuilder\local\helpers\audience::get_all_audiences_menu_types [*]
• core_reportbuilder\local\helpers\report::get_available_columns

As per step 2 of https://moodledev.io/general/development/policies/deprecation the method bodies should be replaced with exceptions

[*] Note this method is also the sole caller of the private get_audience_types method, so this one should be removed too