brcm47xx: do not change nvram without user interaction

SVN-Revision: 37281

target/linux/brcm47xx/base-files/lib/preinit/20_failsafe_set_boot_wait_brcm

@@ -1,14 +0,0 @@
-#!/bin/sh
-
-. /lib/functions.sh
-
-set_boot_wait() {
-	[ -x "/usr/sbin/nvram" ] && {
-		[ "$(nvram get boot_wait)" != "on" ] && {
-			nvram set boot_wait=on
-			nvram commit
-		}
-	}
-}
-
-boot_hook_add failsafe set_boot_wait