removed the switch statement for determining number of CPU's in a system. This should fix CPU 'hlt' instruction not being executed in SMP systems idle loop. Thanks Axel and Ingo for pointing me at this.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15544 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/system/kernel/arch/x86/arch_cpu.c

@@ -469,14 +469,7 @@ arch_cpu_shutdown(bool _reboot)
 void
 arch_cpu_idle(void)
 {
-	switch (smp_get_num_cpus()) {
+	asm("hlt");
-		case 0:
-			panic("You need at least 1 CPU to run Haiku\n");
-		case 1:
-			asm("hlt");
-		default:
-			break;
-	}
 }