powerpc: Remove stubbed beat smp support

I have no idea if the beat hypervisor supports multiple cpus in
a partition, but the code has not been touched since these stubs
were added in February of 2007 except to move them in April of 2008.
These are stubs: start_cpu always returns fail (which is dropped),
the message passing and reciving are empty functions, and the top
of file comment says "Incomplete".

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/platforms/cell/Makefile

@@ -43,7 +43,6 @@ obj-y					+= celleb_setup.o \
 					   beat_hvCall.o beat_interrupt.o \
 					   beat_iommu.o
 
-obj-$(CONFIG_SMP)			+= beat_smp.o
 obj-$(CONFIG_PPC_UDBG_BEAT)		+= beat_udbg.o
 obj-$(CONFIG_SERIAL_TXX9)		+= celleb_scc_sio.o
 obj-$(CONFIG_SPU_BASE)			+= beat_spu_priv1.o

arch/powerpc/platforms/cell/beat_interrupt.c

@@ -257,22 +257,6 @@ void __init beatic_init_IRQ(void)
 	irq_set_default_host(beatic_host);
 }
 
-#ifdef CONFIG_SMP
-
-/* Nullified to compile with SMP mode */
-void beatic_setup_cpu(int cpu)
-{
-}
-
-void beatic_cause_IPI(int cpu, int mesg)
-{
-}
-
-void beatic_request_IPIs(void)
-{
-}
-#endif /* CONFIG_SMP */
-
 void beatic_deinit_IRQ(void)
 {
 	int	i;

arch/powerpc/platforms/cell/beat_interrupt.h

@@ -24,9 +24,6 @@
 
 extern void beatic_init_IRQ(void);
 extern unsigned int beatic_get_irq(void);
-extern void beatic_cause_IPI(int cpu, int mesg);
-extern void beatic_request_IPIs(void);
-extern void beatic_setup_cpu(int);
 extern void beatic_deinit_IRQ(void);
 
 #endif

arch/powerpc/platforms/cell/celleb_setup.c

@@ -128,10 +128,6 @@ static void __init celleb_setup_arch_beat(void)
 	spu_management_ops	= &spu_management_of_ops;
 #endif
 
-#ifdef CONFIG_SMP
-	smp_init_celleb();
-#endif
-
 	celleb_setup_arch_common();
 }