From 605e7f4f52709b12ca6044184364201b186d66d7 Mon Sep 17 00:00:00 2001
From: Laughing <61612323+Laughing-q@users.noreply.github.com>
Date: Mon, 17 Jun 2024 21:18:19 +0800
Subject: [PATCH] Clean up unused `Silence` module (#13674)

---
 ultralytics/cfg/models/v9/yolov9e-seg.yaml | 2 +-
 ultralytics/cfg/models/v9/yolov9e.yaml     | 2 +-
 ultralytics/nn/modules/__init__.py         | 2 --
 ultralytics/nn/tasks.py                    | 1 -
 4 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/ultralytics/cfg/models/v9/yolov9e-seg.yaml b/ultralytics/cfg/models/v9/yolov9e-seg.yaml
index 7a72b29fe4b..23f616b19e2 100644
--- a/ultralytics/cfg/models/v9/yolov9e-seg.yaml
+++ b/ultralytics/cfg/models/v9/yolov9e-seg.yaml
@@ -7,7 +7,7 @@ nc: 80 # number of classes
 
 # gelan backbone
 backbone:
-  - [-1, 1, Silence, []]
+  - [-1, 1, nn.Identity, []]
   - [-1, 1, Conv, [64, 3, 2]] # 1-P1/2
   - [-1, 1, Conv, [128, 3, 2]] # 2-P2/4
   - [-1, 1, RepNCSPELAN4, [256, 128, 64, 2]] # 3
diff --git a/ultralytics/cfg/models/v9/yolov9e.yaml b/ultralytics/cfg/models/v9/yolov9e.yaml
index b05a5ff49e7..c2ddfb46235 100644
--- a/ultralytics/cfg/models/v9/yolov9e.yaml
+++ b/ultralytics/cfg/models/v9/yolov9e.yaml
@@ -7,7 +7,7 @@ nc: 80 # number of classes
 
 # gelan backbone
 backbone:
-  - [-1, 1, Silence, []]
+  - [-1, 1, nn.Identity, []]
   - [-1, 1, Conv, [64, 3, 2]] # 1-P1/2
   - [-1, 1, Conv, [128, 3, 2]] # 2-P2/4
   - [-1, 1, RepNCSPELAN4, [256, 128, 64, 2]] # 3
diff --git a/ultralytics/nn/modules/__init__.py b/ultralytics/nn/modules/__init__.py
index 54f87fdea46..1b1fe5f6629 100644
--- a/ultralytics/nn/modules/__init__.py
+++ b/ultralytics/nn/modules/__init__.py
@@ -45,7 +45,6 @@
     RepC3,
     RepNCSPELAN4,
     ResNetLayer,
-    Silence,
 )
 from .conv import (
     CBAM,
@@ -134,5 +133,4 @@
     "SPPELAN",
     "CBFuse",
     "CBLinear",
-    "Silence",
 )
diff --git a/ultralytics/nn/tasks.py b/ultralytics/nn/tasks.py
index ae241177ba3..020f873bf18 100644
--- a/ultralytics/nn/tasks.py
+++ b/ultralytics/nn/tasks.py
@@ -47,7 +47,6 @@
     ResNetLayer,
     RTDETRDecoder,
     Segment,
-    Silence,  # noqa (equivalent to nn.Identity, unused in file but required to load YOLOv9 models)
     WorldDetect,
 )
 from ultralytics.utils import DEFAULT_CFG_DICT, DEFAULT_CFG_KEYS, LOGGER, colorstr, emojis, yaml_load