I created an own Atlassian profile for Jira before our Jira team owner invited me to our Jira team. The system created an own team for me by the account creation (that the URL of which has the form team-#######.atlassian.net).
Now that I joined the real Jira team of our group, I'd like to get rid of that unused default team, though I can't find where to do that.
Thanks for the help!