[luci/pass] Remove duplicate code

This removes duplicate codes in ConvertNCHWToNHWC.

ONE-DCO-1.0-Signed-off-by: Hyukjin Jeong <[email protected]>

compiler/luci/pass/src/ConvertNCHWToNHWCPass.cpp

@@ -170,46 +170,6 @@ bool check_4d_transpose(loco::Node *node, const std::vector<int32_t> &indices)
   return true;
 }
 
-luci::CircleTranspose *create_4d_transpose(luci::CircleNode *node,
-                                           const std::vector<int32_t> &indices)
-{
-  assert(indices.size() == 4);
-
-  auto name = node->name();
-  assert(name.length() > 0);
-
-  auto perm = node->graph()->nodes()->create<luci::CircleConst>();
-  perm->dtype(loco::DataType::S32);
-  perm->size<loco::DataType::S32>(4);
-  perm->rank(1);
-  perm->dim(0) = 4;
-  for (uint32_t i = 0; i < 4; i++)
-    perm->at<loco::DataType::S32>(i) = indices[i];
-  perm->shape_status(luci::ShapeStatus::VALID);
-
-  auto make_string = [](const std::vector<int32_t> &nums) {
-    std::string str;
-    for (auto num : nums)
-    {
-      if (str.length() > 0)
-        str += ".";
-      str += std::to_string(num);
-    }
-    return str;
-  };
-
-  auto str_indices = make_string(indices);
-
-  perm->name(name + "/Transpose_" + str_indices + "/perm");
-
-  auto trans = node->graph()->nodes()->create<luci::CircleTranspose>();
-  trans->perm(perm);
-  trans->name(name + "/Transpose_" + str_indices);
-  luci::add_origin(trans, luci::get_origin(node));
-
-  return trans;
-}
-
 luci::CircleTranspose *create_Nd_transpose(luci::CircleNode *node,
                                            const std::vector<int32_t> &indices)
 {
@@ -280,12 +240,12 @@ luci::CircleConst *create_nhwc_axis(luci::CircleConst *axis)
 
 luci::CircleTranspose *create_post_transpose(luci::CircleNode *node)
 {
-  return create_4d_transpose(node, {0, 3, 1, 2});
+  return create_Nd_transpose(node, {0, 3, 1, 2});
 }
 
 luci::CircleTranspose *create_pre_transpose(luci::CircleNode *node)
 {
-  return create_4d_transpose(node, {0, 2, 3, 1});
+  return create_Nd_transpose(node, {0, 2, 3, 1});
 }
 
 bool check_4d_reshape(loco::Node *node, const std::vector<int32_t> indices)