Removes 'End time' and all tickets field from the event editor.

wp-theatre-remove-event-editor-fields.php

/**
 * Removes 'End time' and all tickets fields from the event editor.
 * 
 * @param 	array 	$fields		The current fields of the event editor.
 * @param 	int 	$event_id	The event being edited.
 * @return 	array				The new fields of the event editor.
 */
function remove_event_editor_fields($fields, $event_id) {
	
	$new_fields = array();
	$remove_fields = array( 'enddate', 'tickets_status', 'tickets_url', 'tickets_button', '_wpt_event_tickets_price' );
	
	foreach ($fields as $field) {
		if (!in_array($field['id'], $remove_fields)) {
			$new_fields[] = $field;		
		}
	}

	return $new_fields;
}
add_filter( 'wpt/event_editor/fields', 'remove_event_editor_fields', 10, 2 );