Why was this feature removed? I used to be able to right-click, and there were options to remove start date, due date, or both dates. Now those options don't appear (just changing the colour). And even if I delete the dates from the Epic ticket itself, the coloured box stays!
Having no coloured box was useful for Epics that are in the 'backlog' ie. we don't know when we're going to start them yet. Also for Epics that are very long-running (ie. stick around for 6 months or longer) and we don't need the visual cue of when they're starting or ending, we just know they're always happening!
I hope the removal of this useful feature was a bug, and it's being restored soon.