stubbing out 4.x

docs/manual/dev/functions/IPXE.adoc

@@ -1,22 +0,0 @@
-=== `ipxe.py`
-This file handles building the "mini" ISO via iPXE.
-
-==== buildIPXE(_conf_)
-This function builds the iPXE core files.
-
-===== conf
-See <<conf>>.
-
-==== genISO(_conf_)
-This function builds the mini ISO (if <<code_iso_code,enabled>>). Returns a dictionary of information about the built ISO file (see <<iso>>).
-
-===== conf
-See <<conf>>.
-
-==== tftpbootEnv(_conf_)
-This function configures a TFTP boot/root directory for traditional PXE setups.
-
-NOTE: This function currently is a no-op; it will be implemented in future versions.
-
-===== conf
-See <<conf>>.