It seems that some of you have no select or remove links in Manage Tab. If that’s the case, read this.
Update : since v1.9.8, there are no more select and remove links : in the icons tab, you click on the category name to select icons, and you check the boxes on the left to select which icons you want to remove.
To manage icons, you need to be at least to level 4 (editor). So if you have no link in action, check your role, in Users > Authors & Users. Change your role to administrator in Authors & Users, even if you’re administrator, and then click on the button to update your role :