Do not create the uenv.txt file for RPI-B. It is not needed.

Submitted by:	ian
Sponsored by:	The FreeBSD Foundation

release/arm/RPI-B.conf

@@ -32,10 +32,6 @@ arm_install_uboot() {
 		${CHROOTDIR}/${FATMOUNT}/ubldr
 	cp -p ${CHROOTDIR}/${UFSMOUNT}/boot/dtb/rpi.dtb \
 		${CHROOTDIR}/${FATMOUNT}/rpi.dtb
-	echo 'loadbootscript=fatload mmc 0 0x2000000 ubldr' > \
-		${CHROOTDIR}/${FATMOUNT}/uenv.txt
-	echo 'bootscript=fdt addr 0x100;bootelf 0x2000000' >> \
-		${CHROOTDIR}/${FATMOUNT}/uenv.txt
 	sync
 	umount_loop ${CHROOTDIR}/${FATMOUNT}
 	umount_loop ${CHROOTDIR}/${UFSMOUNT}