Remove dead CONFIG_SIBYTE_BCM1480_PROF

CONFIG_SIBYTE_BCM1480_PROF doesn't exist in Kconfig, therefore removing all
references for it from the source code.
Signed-off-by: Christoph Egger <siccegge@cs.fau.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

arch/mips/sibyte/bcm1480/irq.c

@@ -362,19 +362,8 @@ asmlinkage void plat_irq_dispatch(void)
 	unsigned int cpu = smp_processor_id();
 	unsigned int pending;
 
-#ifdef CONFIG_SIBYTE_BCM1480_PROF
-	/* Set compare to count to silence count/compare timer interrupts */
-	write_c0_compare(read_c0_count());
-#endif
-
 	pending = read_c0_cause() & read_c0_status();
 
-#ifdef CONFIG_SIBYTE_BCM1480_PROF
-	if (pending & CAUSEF_IP7)	/* Cpu performance counter interrupt */
-		sbprof_cpu_intr();
-	else
-#endif
-
 	if (pending & CAUSEF_IP4)
 		do_IRQ(K_BCM1480_INT_TIMER_0 + cpu);
 #ifdef CONFIG_SMP