MIPS: Remove dead case label.

CPU_CAVIUM_OCTEON is mips_r2 which is handled before the switch.  This
label in the switch statement is dead code, so we remove it.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Reviewed by: David VomLehn <dvomlehn@cisco.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 0e34faa..2104aa0 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -312,7 +312,6 @@
 	case CPU_BCM3302:
 	case CPU_BCM4710:
 	case CPU_LOONGSON2:
-	case CPU_CAVIUM_OCTEON:
 	case CPU_R5500:
 		if (m4kc_tlbp_war())
 			uasm_i_nop(p);