Can i remove OS X completely and install Windows?
No you don't need PC hardware since Yes you can delete OS X entirely after getting the drivers installed from Boot Camp on OS X.

Follow the directions for creating the bootcamp USB key that comes with bootcamp (you'll need an 8GB key). When you boot from the bootcamp key and it gives you disk utility just delete the OSX partition (I believe this is an option, it's been a while) And make the whole thing Winders.

The Mac IS an Intel PC and Bootcamp is only the drivers and whatnot to create the bootable windows installer with the Mac drivers in it.

Hold onto that key, it's your repair disk and Windows re-installer should you need to sometime in the future.