Drop the debug prompts

ipxe/netboot.xyz-dhcp

@@ -7,7 +7,6 @@ goto dhcp
 
 :dhcp  
 dhcp || goto static
-prompt --key d --timeout 4000 Hit the ${bold}d${boldoff} key to open the debug console && goto debug || goto menu
 goto menu
 
 :static

ipxe/netboot.xyz-static

@@ -3,7 +3,6 @@
 :start
 set version 1
 echo netboot.xyz iPXE loader v${version}
-prompt --key d --timeout 4000 Hit the ${bold}d${boldoff} key to open the debug console && goto debug || goto static
 goto static
 
 :static