How can I remove text printing from the UEFI Logo interface?

Robotics & Edge Computing Jetson Systems Jetson AGX Xavier
6

These messages are from kernel.
Path: Linux_for_Tegra/sources/kernel/kernel-5.10/drivers/firmware/efi/libstub/
efi-stub.c
fdt.c
efi-stub-helper.c

You also could try to remove them and re-build kernel image.