Earlier today I posted how to enable WordPress Post_tags and categories into the WordPress Events+ plugin using your functions.php

This solution goes hand in hand with adding native tags and categories to Events+ and can be found here >

I just finished hiding the custom tags and event categories from the admin menu (this is not deleting them, but hiding them).
This does not change how the WordPress Events+ plugin works, other than making the UI a little more simple so there is no confusion with “which tags to use or which categories to use”

Add this to your functions.php

add_action( 'init', 'unregister_cats' );
function unregister_cats() {
    unregister_taxonomy_for_object_type( 'eab_events_category', 'incsub_event' );
}
			add_action( 'init', 'unregister_tags' );
function unregister_tags() {
    unregister_taxonomy_for_object_type( 'tags', 'incsub_event' );
}

I hope this helps people looking to streamline their WordPress events Admin menu while using the same categories and tags that normal WordPress posts use.