Originally Posted by kezza
Not true. To remove a book from your nook you can archive it directly from the device. Open the book you wish to remove, tap on the center of the screen to bring up the book options and tap the "more" button. From there you can archive the book, which will remove it from your device.
If you want to delete books later, you can do it from the website. But to get stuff off your nook right now, it's easy to do it without logging into your B&N account.