Too many app IDs...

So...how do I let them expire...my apple ID has like 13 attached to it but they're from old / other iDevices...right now on my iPad I only have sidestore sideloadly...the rest are preventing me from adding anything new...do I just wait 7 days then when I check back in sidestore app they'll be gone or do I need to do an action? If-soI, what is that action?