parted: remove obsolete patch

We've had recipe-specific sysroots for a long time now, so there's no
need to forcible disable floating checks.

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>