Remove delays from README

Author: chandr-andr

README.md

@@ -13,40 +13,6 @@ async def test() -> None:
     print("The best task ever!")
 ```
 
-## Non-obvious things
-
-You can send delayed messages using labels.
-
-## Delays
-
-To send delayed message, you have to specify
-delay label. You can do it with `task` decorator,
-or by using kicker. For example:
-
-```python
-broker = AioKafkaBroker(bootstrap_servers="localhost")
-
-@broker.task(delay=3)
-async def delayed_task() -> int:
-    return 1
-
-async def main():
-    await broker.startup()
-    # This message will be received by workers
-    # After 3 seconds delay.
-    await delayed_task.kiq()
-
-    # This message is going to be received after the delay in 4 seconds.
-    # Since we overriden the `delay` label using kicker.
-    await delayed_task.kicker().with_labels(delay=4).kiq()
-
-    # This message is going to be send immediately. Since we deleted the label.
-    await delayed_task.kicker().with_labels(delay=None).kiq()
-
-    # Of course the delay is managed by rabbitmq, so you don't
-    # have to wait delay period before message is going to be sent.
-```
-
 ## Configuration
 
 AioKafkaBroker parameters: