linux-raspberrypi: remove unneeded do_compile_append_raspberrypi3-64
linux-raspberrypi: remove unneeded do_compile_append_raspberrypi3-64

Signed-off-by: Andreas Müller <d72a15aaaca3a7afa855175c72dc8d2e05931e32@gmail.com>

schnitzeltony/meta-raspi-light,schnitzeltony/meta-raspi-light