[SPARC64] mm: Do not flush TLB mm in tlb_finish_mmu()

It isn't needed any longer, as noted by Hugh Dickins.

We still need the flush routines, due to the one remaining
call site in hugetlb_prefault_arch_hook().  That can be
eliminated at some later point, however.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/asm-sparc64/tlb.h b/include/asm-sparc64/tlb.h
index 66138d9..1eda179 100644
--- a/include/asm-sparc64/tlb.h
+++ b/include/asm-sparc64/tlb.h
@@ -78,11 +78,9 @@
 {
 	tlb_flush_mmu(mp);
 
-	if (mp->fullmm) {
-		if (CTX_VALID(mp->mm->context))
-			do_flush_tlb_mm(mp->mm);
+	if (mp->fullmm)
 		mp->fullmm = 0;
-	} else
+	else
 		flush_tlb_pending();
 
 	/* keep the page table cache within bounds */