um: Remove hppfs

hppfs (honeypot procfs) was an attempt to use UML as honeypot.
It was never stable nor in heavy use.

As Al Viro and Christoph Hellwig pointed some major issues out
it is better to let it die.

Signed-off-by: Richard Weinberger <richard@nod.at>

arch/um/Kconfig.um

@@ -44,21 +44,6 @@ config HOSTFS
           If you'd like to be able to work with files stored on the host,
           say Y or M here; otherwise say N.
 
-config HPPFS
-	tristate "HoneyPot ProcFS"
-	depends on PROC_FS
-	help
-	  hppfs (HoneyPot ProcFS) is a filesystem which allows UML /proc
-	  entries to be overridden, removed, or fabricated from the host.
-	  Its purpose is to allow a UML to appear to be a physical machine
-	  by removing or changing anything in /proc which gives away the
-	  identity of a UML.
-
-	  See <http://user-mode-linux.sf.net/old/hppfs.html> for more information.
-
-	  You only need this if you are setting up a UML honeypot.  Otherwise,
-	  it is safe to say 'N' here.
-
 config MCONSOLE
 	bool "Management console"
 	default y