Steps to replicate the issue (include links if applicable):
- set $wgCampaignEventsEnableEmail = false in local settings
- Log in as an event organiser
- Navigate to one of your events
What happens?: "Message Participants" button appears but does not work.
What should have happened instead?: "Message Participants" button should not appear
Software version (skip for WMF-hosted wikis like Wikipedia):
Other information (browser name/version, screenshots, etc.):