Clean dead code from matter (#90369)

homeassistant/components/matter/models.py

@@ -2,8 +2,8 @@
 from __future__ import annotations
 
 from collections.abc import Callable
-from dataclasses import asdict, dataclass
-from typing import TYPE_CHECKING, Any
+from dataclasses import dataclass
+from typing import Any
 
 from chip.clusters import Objects as clusters
 from chip.clusters.Objects import ClusterAttributeDescriptor
@@ -13,19 +13,6 @@ from matter_server.client.models.node import MatterEndpoint
 from homeassistant.const import Platform
 from homeassistant.helpers.entity import EntityDescription
 
-if TYPE_CHECKING:
-    from _typeshed import DataclassInstance
-
-
-class DataclassMustHaveAtLeastOne:
-    """A dataclass that must have at least one input parameter that is not None."""
-
-    def __post_init__(self: DataclassInstance) -> None:
-        """Post dataclass initialization."""
-        if all(val is None for val in asdict(self).values()):
-            raise ValueError("At least one input parameter must not be None")
-
-
 SensorValueTypes = type[
     clusters.uint | int | clusters.Nullable | clusters.float32 | float
 ]