powerpc: Remove obsolete prototype

Hello,

The include/asm-powerpc/paca.h file has a prototype for a function that does not exist any more; its name is setup_boot_paca. This function was removed in commit 4ba99b97dadd35b9ce1438b2bc7c992a4a14a8b1, so its prototype should have been removed at that time too. Patch below.

Kind regards,

index cf95274..00a70e5 100644
@@ -107,7 +107,5 @@ struct paca_struct {
 

extern struct paca_struct paca[];

-void setup_boot_paca(void);
-
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_PACA_H */

Julio M. Merino Vidal <[email protected]>