powerpc: Remove MMU_FTR_SLB

We now only support cpus that use an SLB, so we don't need an MMU
feature to indicate that.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index dc8cf28..8d198b5 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -2690,7 +2690,7 @@
 }
 
 #ifdef CONFIG_PPC_BOOK3S_64
-static void dump_slb(void)
+void dump_segments(void)
 {
 	int i;
 	unsigned long esid,vsid,valid;
@@ -2722,12 +2722,6 @@
 		}
 	}
 }
-
-void dump_segments(void)
-{
-	if (mmu_has_feature(MMU_FTR_SLB))
-		dump_slb();
-}
 #endif
 
 #ifdef CONFIG_PPC_STD_MMU_32