Currently, if a captain invites a player (by email), then discovers that player already has an account on the site and invites them by name, the first invite sits idle in the 'invites' list. The only way to remove it is to click 'withdraw invitation', which results in a 'your invitation has been withdrawn' email, even though the player is a part of the roster.

This feature request is to add the ability for a captain to withdraw an invitation without generating an invite; allowing them to clean up the invite list without generating the confusing email.