remove unused method

zha/application/helpers.py

@@ -6,7 +6,6 @@
 import binascii
 import collections
 from collections.abc import Callable
-from contextlib import suppress
 import dataclasses
 from dataclasses import dataclass
 import enum
@@ -180,17 +179,6 @@ def async_is_bindable_target(source_zha_device: Device, target_zha_device: Devic
     return False
 
 
-def async_get_zha_config_value(
-    zha_data: ZHAData, section: str, config_key: str, default: _T
-) -> _T:
-    """Get the value for the specified configuration from the ZHA config entry."""
-    with suppress(KeyError):
-        config_value = zha_data.config[section][config_key]
-    if config_value is None:
-        return default
-    return config_value
-
-
 def convert_install_code(value: str) -> zigpy.types.KeyData:
     """Convert string to install code bytes and validate length."""