Cleanup ZHA group entity lifecycle (#33977)

* Clean up ZHA group entity lifecycle

* group entities don't use state restore

* add tests

homeassistant/components/zha/core/device.py

@@ -561,7 +561,15 @@ class ZHADevice(LogMixin):
 
     async def async_remove_from_group(self, group_id):
         """Remove this device from the provided zigbee group."""
-        await self._zigpy_device.remove_from_group(group_id)
+        try:
+            await self._zigpy_device.remove_from_group(group_id)
+        except (zigpy.exceptions.DeliveryError, asyncio.TimeoutError) as ex:
+            self.debug(
+                "Failed to remove device '%s' from group: 0x%04x ex: %s",
+                self._zigpy_device.ieee,
+                group_id,
+                str(ex),
+            )
 
     async def async_bind_to_group(self, group_id, cluster_bindings):
         """Directly bind this device to a group for the given clusters."""