HI all,
As this option doesn't exist i would like to advise and hear ideas from people that found workaround for this need.
In many cases we do not want to allow users the permission to delete.
What i do in most cases is set a status & Resolution that the issue moves to if the user would like to delete an issue. In the agile boards i update the board filter will not include issue in 'status\resolution=Removed'
Would love to hear other people thoughts about this and hear other solutions you found usefull 
Thank you!
Shirley