[PATCH] xen: remove XEN_PRIVILEGED_GUEST

[Paul Bolle <pebolle@tiscali.nl>]

This patch removes the Kconfig symbol XEN_PRIVILEGED_GUEST which is
used nowhere in the tree. We do know grub2 has a script that greps
kernel configuration files for this symbol. It shouldn't do that. As
Linus summarized:
    This is a grub bug. It really is that simple. Treat it as one.

So there's no reason to not remove it, like we do with all unused
Kconfig symbols.

[pebolle@tiscali.nl: rewrote commit explanation.]
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
---
Tested with "git grep".

Michael's version can be found at https://lkml.org/lkml/2013/7/8/34 .
(This is the same patch, with a rewritten explanation, and my S-o-b
line.) The question whether this symbol can be removed was further
discussed in https://lkml.org/lkml/2013/7/15/308 .

I don't think a bug was ever filed against grub2 regarding its way to
check for Xen support. Should that be done first?

 arch/x86/xen/Kconfig | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index 01b9026..512219d 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -19,11 +19,6 @@ config XEN_DOM0
 	depends on XEN && PCI_XEN && SWIOTLB_XEN
 	depends on X86_LOCAL_APIC && X86_IO_APIC && ACPI && PCI
 
-# Dummy symbol since people have come to rely on the PRIVILEGED_GUEST
-# name in tools.
-config XEN_PRIVILEGED_GUEST
-	def_bool XEN_DOM0
-
 config XEN_PVHVM
 	def_bool y
 	depends on XEN && PCI && X86_LOCAL_APIC
-- 
1.8.5.3