diff --git a/tests/integration/sensor_utils.py b/tests/integration/sensor_utils.py
deleted file mode 100644
index c3843a26ab..0000000000
--- a/tests/integration/sensor_utils.py
+++ /dev/null
@@ -1,27 +0,0 @@
-"""Shared utilities for sensor integration tests."""
-
-from __future__ import annotations
-
-from aioesphomeapi import EntityInfo
-
-
-def build_key_to_sensor_mapping(
-    entities: list[EntityInfo], sensor_names: list[str]
-) -> dict[int, str]:
-    """Build a mapping from entity keys to sensor names.
-
-    Args:
-        entities: List of entity info objects from the API
-        sensor_names: List of sensor names to search for in object_ids
-
-    Returns:
-        Dictionary mapping entity keys to sensor names
-    """
-    key_to_sensor: dict[int, str] = {}
-    for entity in entities:
-        obj_id = entity.object_id.lower()
-        for sensor_name in sensor_names:
-            if sensor_name in obj_id:
-                key_to_sensor[entity.key] = sensor_name
-                break
-    return key_to_sensor