remove unused conv_elementwise_add2_act_fuse.cc (#19344)

test=develop

paddle/fluid/framework/ir/conv_elementwise_add2_act_fuse.cc

-// Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include <string>
-#include "paddle/fluid/framework/ir/conv_elementwise_add2_act_fuse_pass.h"
-
-namespace paddle {
-namespace framework {
-namespace ir {
-
-#define GET_IR_NODE(node__) GET_IR_NODE_FROM_SUBGRAPH(node__, node__, pattern);
-#define GET_NODES                      \
-  GET_IR_NODE(conv_op);                \
-  GET_IR_NODE(conv_out);               \
-  GET_IR_NODE(conv_filter);            \
-  GET_IR_NODE(elementwise_add_op);     \
-  GET_IR_NODE(elementwise_add_in_y);   \
-  GET_IR_NODE(elementwise_add_out);    \
-  GET_IR_NODE(elementwise_add_op_1);   \
-  GET_IR_NODE(elementwise_add_in_y_1); \
-  GET_IR_NODE(elementwise_add_out_1);  \
-  GET_IR_NODE(act_op);                 \
-  GET_IR_NODE(act_out);
-
-// Inherient the basic infomation from `base_desc`, and modify some fields.
-framework::proto::OpDesc PrepareOpDesc(
-    const framework::proto::OpDesc& base_desc, const std::string& bias,
-    const std::string& bias1, const std::string& activation,
-    const std::string& output) {
-  auto proto = base_desc;
-  framework::OpDesc desc(proto, nullptr);
-  desc.SetInput("Bias", {bias});
-  desc.SetInput("ResidualData", {bias1});
-  desc.SetAttr("activation", activation);
-  desc.SetOutput("Output", {output});
-  desc.SetAttr("is_test", true);
-  desc.SetAttr("use_cudnn", false);
-
-  return *desc.Proto();
-}
-
-void ConvElementwiseAddActFusePass::ApplyImpl(ir::Graph* graph) const {
-  const std::string pattern_name = "conv_elementwise_add_act_fuse";
-  FusePassBase::Init(pattern_name, graph);
-
-  GraphPatternDetector gpd;
-  auto* x = gpd.mutable_pattern()->NewNode("x")->AsInput()->assert_is_op_input(
-      "conv2d", "Input");
-
-  patterns::ConvElementwiseaddAct pattern(gpd.mutable_pattern(), pattern_name);
-  pattern(x);
-
-  auto handler = [&](const GraphPatternDetector::subgraph_t& subgraph,
-                     Graph* g) {
-    GET_NODES;
-
-    auto base_op_desc = *conv_op->Op()->Proto();
-    std::string bias_name = elementwise_add_in_y->Name();
-    std::string bias1_name = elementwise_add_in_y_1->Name();
-    std::string act_op_type = act_op->Op()->Type();
-    std::string act_op_out = act_out->Name();
-
-    auto new_op_proto = PrepareOpDesc(base_op_desc, bias_name, bias1_name,
-                                      act_op_type, act_op_out);
-    framework::OpDesc new_op_desc(new_op_proto, nullptr);
-
-    // Create a new node for the fused op.
-    auto new_conv_op = graph->CreateOpNode(&new_op_desc);
-
-    // Link inputs and outputs.
-    PADDLE_ENFORCE(subgraph.count(x));
-    auto* conv_in_node = subgraph.at(x);
-
-    IR_NODE_LINK_TO(conv_in_node, new_conv_op);            // Input
-    IR_NODE_LINK_TO(conv_filter, new_conv_op);             // Filter
-    IR_NODE_LINK_TO(elementwise_add_in_y, new_conv_op);    // Bias
-    IR_NODE_LINK_TO(elementwise_add_in_y_1, new_conv_op);  // ResidualData
-    IR_NODE_LINK_TO(new_conv_op, act_out);                 // Output
-
-    // Delete the unneeded nodes.
-    GraphSafeRemoveNodes(graph.get(),
-                         {conv_op, elementwise_add_op, elementwise_add_op_1,
-                          elementwise_add_out});
-  };
-  gpd(graph.get(), handler);
-}
-
-}  // namespace ir
-}  // namespace framework
-}  // namespace paddle
-
-REGISTER_PASS(conv_elementwise_add2_act_fuse_pass,
-              paddle::framework::ir::ConvElementwiseAdd2ActFusePass);