powerpc: Remove outdated Documentation/powerpc/smp.txt

Documentation/powerpc/smp.txt is so outdated that it makes sense to just
remove it.
Signed-off-by: NGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Documentation/powerpc/00-INDEX

@@ -18,8 +18,6 @@ mpc52xx.txt
 	- Linux 2.6.x on MPC52xx family
 mpc52xx-device-tree-bindings.txt
 	- MPC5200 Device Tree Bindings
-smp.txt
-	- use and state info about Linux/PPC on MP machines
 sound.txt
 	- info on sound support under Linux/PPC
 zImage_layout.txt

Documentation/powerpc/smp.txt

-                 Information about Linux/PPC SMP mode
-=====================================================================
-
-This document and the related code was written by me
-(Cort Dougan, cort@fsmlabs.com) please email me if you have questions,
-comments or corrections.
-
-Last Change: 3.31.99
-
-If you want to help by writing code or testing different hardware please
-email me!
-
-1. State of Supported Hardware
-
-  PowerSurge Architecture - tested on UMAX s900, Apple 9600
-    The second processor on this machine boots up just fine and
-    enters its idle loop.  Hopefully a completely working SMP kernel
-    on this machine will be done shortly.
-
-    The code makes the assumption of only two processors.  The changes
-    necessary to work with any number would not be overly difficult but
-    I don't have any machines with >2 processors so it's not high on my
-    list of priorities.  If anyone else would like do to the work email
-    me and I can point out the places that need changed.  If you have >2
-    processors and don't want to add support yourself let me know and I
-    can take a look into it.
-
-  BeBox
-    BeBox support hasn't been added to the 2.1.X kernels from 2.0.X
-    but work is being done and SMP support for BeBox is in the works.
-
-  CHRP
-    CHRP SMP works and is fairly solid.  It's been tested on the IBM F50
-    with 4 processors for quite some time now.