I think those apps r in vs0. u might try deleting them from there as well as removing their entries in the app.db. be warned though as u might have to reinstall the firmware if u do this. it shouldn't brick afaik, but you've been warned.
btw, I believe near is used as a hacking entry point (possibly for mai; maybe only for vitamin), so don't delete that. u can find the title id by looking in your app.db. use sqlite browser to do this. I think deleting the app, then rebuilding the database should suffice in removing the entries.
edit: also, u can find the title id by way of the appicon table. it will be listed there which is how themes change the icons I believe.