[PATCH v4 2/3] docs: Remove docs for non-existing pxe_unload command

[Hans Ulrich Niedermann]

Remove the documentation of the pxe_unload command from the
docs/grub.texi file.

The pxe_unload command is not implemented in the grub source
at this time at all. It appears to have been removed in commit
71a78acb0648d3d73c95ab0f021f907499aacc0 (from 2011-07-05).

Signed-off-by: Hans Ulrich Niedermann <address@hidden>

diff --git a/docs/grub.texi b/docs/grub.texi
index 0865ffa17..0f7886bb6 100644
--- a/docs/grub.texi
+++ b/docs/grub.texi
@@ -4012,7 +4012,6 @@ you forget a command, you can run the command 
@command{help}
 * password_pbkdf2::             Set a hashed password
 * play::                        Play a tune
 * probe::                       Retrieve device info
-* pxe_unload::                  Unload the PXE environment
 * rdmsr::                       Read values from model-specific registers
 * read::                        Read user input
 * reboot::                      Reboot your computer
@@ -4863,16 +4862,6 @@ The option @option{--part-uuid} is currently only 
implemented for GPT-formatted
 @end deffn
 
 
-@node pxe_unload
-@subsection pxe_unload
-
-@deffn Command pxe_unload
-Unload the PXE environment (@pxref{Network}).
-
-This command is only available on PC BIOS systems.
-@end deffn
-
-
 @node rdmsr
 @subsection rdmsr
 
-- 
2.26.2