ref(etcd): remove etcd sleep at boot

Slows down boot time and as such the development cycle. Removing only because we have plans to fully remove etcd and it's already mostly been ripped out

Author: helgi

rootfs/bin/boot

@@ -26,9 +26,6 @@ until etcdctl --no-sync -C "$ETCD" ls >/dev/null 2>&1; do
 	sleep $((ETCD_TTL/2))  # sleep for half the TTL
 done
 
-# wait until etcd has discarded potentially stale values
-sleep $((ETCD_TTL+1))
-
 function etcd_set_default {
 	set +e
 	ERROR="$(etcdctl --no-sync -C "$ETCD" mk "$ETCD_PATH/$1" "$2" 2>&1)"