diff --git a/tests/components/smartthings/__init__.py b/tests/components/smartthings/__init__.py
index 35b2269c9b2..3395f7f4673 100644
--- a/tests/components/smartthings/__init__.py
+++ b/tests/components/smartthings/__init__.py
@@ -1,7 +1,5 @@
 """Tests for the SmartThings integration."""
 
-import sys
-import types
 from typing import Any
 from unittest.mock import AsyncMock
 
@@ -92,38 +90,3 @@ async def trigger_health_update(
         if call[0][0] == device_id:
             call[0][1](event)
     await hass.async_block_till_done()
-
-
-def ensure_haffmpeg_stubs() -> None:
-    """Ensure haffmpeg stubs are available for SmartThings tests."""
-    if "haffmpeg" in sys.modules:
-        return
-
-    haffmpeg_module = types.ModuleType("haffmpeg")
-    haffmpeg_core_module = types.ModuleType("haffmpeg.core")
-    haffmpeg_tools_module = types.ModuleType("haffmpeg.tools")
-
-    class _StubHAFFmpeg: ...
-
-    class _StubFFVersion:
-        def __init__(self, bin_path: str | None = None) -> None:
-            self.bin_path = bin_path
-
-        async def get_version(self) -> str:
-            return "4.0.0"
-
-    class _StubImageFrame: ...
-
-    haffmpeg_core_module.HAFFmpeg = _StubHAFFmpeg
-    haffmpeg_tools_module.IMAGE_JPEG = b""
-    haffmpeg_tools_module.FFVersion = _StubFFVersion
-    haffmpeg_tools_module.ImageFrame = _StubImageFrame
-    haffmpeg_module.core = haffmpeg_core_module
-    haffmpeg_module.tools = haffmpeg_tools_module
-
-    sys.modules["haffmpeg"] = haffmpeg_module
-    sys.modules["haffmpeg.core"] = haffmpeg_core_module
-    sys.modules["haffmpeg.tools"] = haffmpeg_tools_module
-
-
-ensure_haffmpeg_stubs()