title: TFS 2013: Remove obsolete build controllers/agents not visible in admin
body: <p>We have upgraded our TFS from 2010 to 2013, and the same time moved the TFS and databases to new servers, with new names. </p>
  
  <p>One of the very few annoying effects (Probably due to moving the TFS to a server with a new name) is that the build controller/agent from the old server is still visible in lists of available build controllers/agents, but is not visible in the admin gui for build configurations and therefore not possible to remove.</p>
  
  <p>Does anyone have had the same experience and furthermore have a solution of how to remove the traces of old (and not used/wanted) build controllers/agents?</p>
  
  <p>Kind regards,
  J</p>