Remove changelog entry

Signed-off-by: ToothyDev <55001472+ToothyDev@users.noreply.github.com>

Author: ToothyDev

CHANGELOG.md

@@ -40,9 +40,6 @@ These changes are available on the `master` branch, but have not yet been releas
   ([#3105](https://github.com/Pycord-Development/pycord/pull/3105))
 - Fixed the update of a user's `avatar_decoration` to now cause an `on_user_update`
   event to fire. ([#3103](https://github.com/Pycord-Development/pycord/pull/3103))
-- Fixed the `slash_command`, `message_command` and `user_command` decorators to
-  explicitly list the accepted parameters, and have a return type.
-  ([#3119](https://github.com/Pycord-Development/pycord/pull/3119))
 
 ### Deprecated