Refactor get_netboot() to add create_vm() compatibility

quickget

@@ -994,11 +994,8 @@ function get_netboot() {
     local ISO="netboot.xyz.iso"
     local HASH=""
     local URL="https://boot.netboot.xyz/ipxe"
-
     HASH=$(wget -q -O- "${URL}/netboot.xyz-sha256-checksums.txt" | grep "${ISO}" | cut -d' ' -f1)
-    web_get "${URL}/${ISO}" "${VM_PATH}"
-    check_hash "${ISO}" "${HASH}"
-    make_vm_config "${ISO}"
+    echo "${URL}/${ISO} ${HASH}"
 }
 
 function get_netbsd() {