[llvm] [GlobalISel] Remove unused function narrowToSmallerAndWidenToSmallest (PR #69130)

[Kazu Hirata via llvm-commits]

https://github.com/kazutakahirata created https://github.com/llvm/llvm-project/pull/69130

The last use was removed by:

  commit b163efae3312abe1227cff1d7704325138b4e538
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   Thu Jun 15 13:56:53 2023 +0100


>From 0f8d6214e62fd6fd0622d75c0537063d24f42152 Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu at google.com>
Date: Sun, 15 Oct 2023 12:19:23 -0700
Subject: [PATCH] [GlobalISel] Remove unused function
 narrowToSmallerAndWidenToSmallest

The last use was removed by:

  commit b163efae3312abe1227cff1d7704325138b4e538
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   Thu Jun 15 13:56:53 2023 +0100
---
 .../llvm/CodeGen/GlobalISel/LegacyLegalizerInfo.h      | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/llvm/include/llvm/CodeGen/GlobalISel/LegacyLegalizerInfo.h b/llvm/include/llvm/CodeGen/GlobalISel/LegacyLegalizerInfo.h
index 08233dba2041143..0b167ce9650d070 100644
--- a/llvm/include/llvm/CodeGen/GlobalISel/LegacyLegalizerInfo.h
+++ b/llvm/include/llvm/CodeGen/GlobalISel/LegacyLegalizerInfo.h
@@ -240,16 +240,6 @@ class LegacyLegalizerInfo {
                                                        Unsupported);
   }
 
-  static SizeAndActionsVec
-  narrowToSmallerAndWidenToSmallest(const SizeAndActionsVec &v) {
-    using namespace LegacyLegalizeActions;
-    assert(v.size() > 0 &&
-           "At least one size that can be legalized towards is needed"
-           " for this SizeChangeStrategy");
-    return decreaseToSmallerTypesAndIncreaseToSmallest(v, NarrowScalar,
-                                                       WidenScalar);
-  }
-
   /// A SizeChangeStrategy for the common case where legalization for a
   /// particular vector operation consists of having more elements in the
   /// vector, to a type that is legal. Unless there is no such type and then