x86: Drop message about features being missing with 64-bit

At this point most things work, including booting a distro, so drop
this message.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/lib/spl.c b/arch/x86/lib/spl.c
index c15f11f..4e4cf18 100644
--- a/arch/x86/lib/spl.c
+++ b/arch/x86/lib/spl.c
@@ -283,7 +283,7 @@
 {
 	int ret;
 
-	printf("Jumping to 64-bit U-Boot: Note many features are missing\n");
+	printf("Jumping to 64-bit U-Boot\n");
 	ret = cpu_jump_to_64bit_uboot(spl_image->entry_point);
 	debug("ret=%d\n", ret);
 	hang();
diff --git a/doc/board/emulation/qemu-x86.rst b/doc/board/emulation/qemu-x86.rst
index c604e42..4eeba46 100644
--- a/doc/board/emulation/qemu-x86.rst
+++ b/doc/board/emulation/qemu-x86.rst
@@ -134,7 +134,7 @@
 
    U-Boot SPL 2023.07 (Jul 23 2023 - 08:00:12 -0600)
    Trying to boot from SPI
-   Jumping to 64-bit U-Boot: Note many features are missing
+   Jumping to 64-bit U-Boot
 
 
    U-Boot 2023.07 (Jul 23 2023 - 08:00:12 -0600)