diff --git a/backend/tests/conftest.py b/backend/tests/conftest.py
index e8f499c..16403a3 100644
--- a/backend/tests/conftest.py
+++ b/backend/tests/conftest.py
@@ -1,8 +1 @@
 """Shared pytest fixtures for backend tests."""
-import asyncio
-import pytest
-
-
-@pytest.fixture
-def anyio_backend():
-    return "asyncio"
diff --git a/backend/tests/test_sanity.py b/backend/tests/test_sanity.py
index 01d1dfd..9396cff 100644
--- a/backend/tests/test_sanity.py
+++ b/backend/tests/test_sanity.py
@@ -1,6 +1,5 @@
 """Sanity test to verify pytest infrastructure works."""
 import asyncio
-import pytest
 
 
 def test_sync_sanity():