How would i go about removing trophies if its even possible? Since i've tried a few games that i don't plan on playing again, their trophy list sits empty on the menu and are dragging down my percentage of completion.
EiKii's theory is right. Your trophies are stored on the HDD of your PS3 so you can delete them by simply formatting the drive, but this will remove ALL trophies. If you synced your trophies, which you want to keep, before, than it should be no problem, just connect after formatting to PSN and sync your trophies. They should be restored again.