diff --git a/homeassistant/components/shelly/__init__.py b/homeassistant/components/shelly/__init__.py
index 4551fee5590..012f692c579 100644
--- a/homeassistant/components/shelly/__init__.py
+++ b/homeassistant/components/shelly/__init__.py
@@ -766,14 +766,13 @@ class RpcDeviceWrapper(update_coordinator.DataUpdateCoordinator):
             self.device.firmware_version,
             new_version,
         )
-        result = None
         try:
             async with async_timeout.timeout(AIOSHELLY_DEVICE_TIMEOUT_SEC):
-                result = await self.device.trigger_ota_update(beta=beta)
+                await self.device.trigger_ota_update(beta=beta)
         except (asyncio.TimeoutError, OSError) as err:
             LOGGER.exception("Error while perform ota update: %s", err)
 
-        LOGGER.debug("Result of OTA update call: %s", result)
+        LOGGER.debug("OTA update call successful")
 
     async def shutdown(self) -> None:
         """Shutdown the wrapper."""
diff --git a/homeassistant/components/zwave_js/api.py b/homeassistant/components/zwave_js/api.py
index 5d81dc46803..c2e03981686 100644
--- a/homeassistant/components/zwave_js/api.py
+++ b/homeassistant/components/zwave_js/api.py
@@ -1290,11 +1290,8 @@ async def websocket_remove_failed_node(
     connection.subscriptions[msg["id"]] = async_cleanup
     msg[DATA_UNSUBSCRIBE] = unsubs = [controller.on("node removed", node_removed)]
 
-    result = await controller.async_remove_failed_node(node.node_id)
-    connection.send_result(
-        msg[ID],
-        result,
-    )
+    await controller.async_remove_failed_node(node.node_id)
+    connection.send_result(msg[ID])
 
 
 @websocket_api.require_admin
@@ -1469,8 +1466,8 @@ async def websocket_refresh_node_info(
         node.on("interview failed", forward_event),
     ]
 
-    result = await node.async_refresh_info()
-    connection.send_result(msg[ID], result)
+    await node.async_refresh_info()
+    connection.send_result(msg[ID])
 
 
 @websocket_api.require_admin