Removing useless internal from ramfs

Signed-off-by: Álvaro Jurado <elbingmiss@gmail.com>

sys/src/9/amd64/build.json

@@ -87,7 +87,6 @@
 			},
 			"Ramfiles": {
 				"bind": "/$ARCH/bin/bind",
-				"boot": "/sys/src/9/boot/bootcpu.elf.out",
 				"cat": "/$ARCH/bin/cat",
 				"crs": "/$ARCH/bin/acpi/crs",
 				"date": "/$ARCH/bin/date",