Remove information about agent and core integrations releases as it h… (

#12089)

* Remove information about agent and core integrations releases as it has been moved internally

docs/developer/ddev/configuration.md

@@ -86,22 +86,3 @@ If not:
 1. Create a [personal access token][github-personal-access-token] with `public_repo` and `read:org` permissions
 1. Run `ddev config set github.token` then paste the token
 1. [Enable single sign-on][github-saml-single-sign-on] for the token
-
-## Trello
-
-To participate as an [Agent release manager](../process/agent-release/pre-release.md), you need to set `trello.key`/`trello.token` in your config file.
-
-Run `ddev config show` to see if your Trello key and token is set.
-
-If not:
-
-1. Go to `https://trello.com/app-key` and copy your API key
-1. Run `ddev config set trello.key` then paste your API key
-1. Go to `https://trello.com/1/authorize?key=<KEY>&name=<NAME>&scope=read,write&expiration=never&response_type=token`,
-   where `<KEY>` is your API key and `<NAME>` is the name to give your token, e.g. `ReleaseTestingYourName`.
-   Authorize access and copy your token.
-1. Run `ddev config set trello.token` and paste your token
-
-### Card Assignment
-
-When automatically assigning [QA cards](../process/agent-release/pre-release.md#create-items), the Trello users which are members of the `Agent Release Sprint` Trello board will be fetched and cards will be assigned at random to them. Make sure people in your team are all members of the `Agent Release Sprint` board.