udoo_neo: Remove ramdiskaddr environment variable

Remove unused ramdiskaddr environment variable.

Suggested-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Breno Lima <breno.lima@nxp.com>

include/configs/udoo_neo.h

@@ -52,7 +52,6 @@
 	"kernel_addr_r=" __stringify(CONFIG_LOADADDR) "\0" \
 	"pxefile_addr_r=" __stringify(CONFIG_LOADADDR) "\0" \
 	"ramdisk_addr_r=0x83000000\0" \
-	"ramdiskaddr=0x83000000\0" \
 	"scriptaddr=" __stringify(CONFIG_LOADADDR) "\0" \
 	BOOTENV