Should not stop cancelling read if timeout'd

pytec/pytec/aioclient.py

@@ -93,8 +93,7 @@ class Client:
 
     async def _command(self, *command):
         async with self._command_lock:
-            # protect the read-write process from being cancelled midway
-            line = await asyncio.shield(self._read_write(command))
+            line = await self._read_write(command)
 
         response = json.loads(line)
         logging.debug("%s: %s", command, response)