MIPS: RM9000: Remove support for idle loop.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/idle.c b/arch/mips/kernel/idle.c
index 837ff27..5e3b653 100644
--- a/arch/mips/kernel/idle.c
+++ b/arch/mips/kernel/idle.c
@@ -224,10 +224,6 @@
 		   cpu_wait = r4k_wait;
 		 */
 		break;
-	case CPU_RM9000:
-		if ((c->processor_id & 0x00ff) >= 0x40)
-			cpu_wait = r4k_wait;
-		break;
 	default:
 		break;
 	}