the metal pins/terminals are removable, just release a tab on the side and they pull right out of the connector. if you have a 2x3, 2x4, or 2x5 connector from something else then you can use that instead (a standard 2x4 or 2x5 USB header connector will work). if you don't have one then you can buy a connector by itself (the website you linked sells them )
alternatively, you can also use the terminals independently (without the plastic connector). just put some heatshrink over the terminals you want to use so they don't touch the adjacent pins.