Fix deprecation notice on manage events page

[eileenmcnaughton]

Overview

Fixes a deprecation notice

Before

After

Technical Details

This function is called internally in this code case anyway - see

    if (empty($eventId)) {
      CRM_Core_Error::deprecatedFunctionWarning('CRM_Event_BAO_Event::getAllPermissions');
      return self::getAllPermissions();
    }

Comments

[civibot]

(Standard links)

• If this is your first pull-request for CiviCRM, please browse CONTRIBUTING.md for information about the development and testing processes.
• If you are reviewing this pull-request, you may wish to consult the test sites and the Review Standards (long template, short template).

[pradpnayak]

Tested and looks safe to MERGE!

[eileenmcnaughton]

thanks @pradpnayak