Remove an unnecessary 3s boot from iPXE

Signed-off-by: Jonathon Anderson <janderson@ciq.com>

CHANGELOG.md

@@ -51,6 +51,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Update `wwctl server` to always run in the foreground #508
 - Update `wwctl server` to log to stdout rather than a file #503
 - Changed `wwctl server` to use "INFO" for send and receive logs #725
+- Remove a 3-second sleep during iPXE boot. #1500
 
 
 ### Removed

etc/ipxe/default.ipxe

@@ -89,14 +89,11 @@ initrd --name kmods ${uri_base}&stage=kmods&compress=gz         || goto reboot
 
 :imoktogo
 
-echo Booting in 3s...
 {{if ne .KernelOverride "" -}}
 echo boot kernel initrd=container initrd=kmods initrd=system initrd=runtime wwid={{.Hwaddr}} {{.KernelArgs}}
-sleep 3
 boot kernel initrd=container initrd=kmods initrd=system initrd=runtime wwid={{.Hwaddr}} {{.KernelArgs}} ||  goto reboot
 {{- else -}}
 echo boot kernel initrd=container initrd=system initrd=runtime wwid={{.Hwaddr}} {{.KernelArgs}}
-sleep 3
 boot kernel initrd=container initrd=system initrd=runtime wwid={{.Hwaddr}} {{.KernelArgs}} ||  goto reboot
 {{- end}}