docs: deprecate discord-mods-bot

Author: marcoieni

service-catalog/README.md

@@ -16,7 +16,7 @@ how-to guides, explanations, and reference documentation.
 - [crater](./crater/README.md)
 - [crates-io](./crates-io/README.md)
 - [dev-desktops](./dev-desktops/README.md)
-- [discord-mods-bot](./discord-mods-bot/README.md)
+- [discord-mods-bot](./discord-mods-bot/README.md) *(decommissioned)*
 - [dns](./dns/README.md)
 - [docs-rs](./dns/README.md)
 - [infra-smoke-tests](./dns/README.md)

service-catalog/discord-mods-bot/README.md

@@ -1,29 +1,10 @@
 # Discord moderation bot
 
-[Discord-mods-bot](https://github.com/rust-lang/discord-mods-bot)
-is a bot used by the moderation team to manage the Rust Discord server.
+Discord-mods-bot was a bot used by the moderation team to manage the Rust Discord server.
+The bot was dismissed in July 2025, when the
+[discord server](https://forge.rust-lang.org/platforms/discord.html) was closed.
 
-The bot is managed in the
-[terraform/discord-mods-bot](https://github.com/rust-lang/simpleinfra/tree/master/terraform/discord-mods-bot)
-module and uses the `discord-mods-bot` database of
-[terraform/rds-databases](https://github.com/rust-lang/simpleinfra/tree/master/terraform/rds-databases)
+Its code was located at `https://github.com/rust-lang/discord-mods-bot`.
 
-## Versions
-
-Here are the dependencies we need to keep up-to-date:
-
-`simpleinfra` repo:
-
-- terraform providers
-- `aws_ecs_service` platform version
-
-`discord-mods-bot` repo:
-
-- Ubuntu version specified in the
-  [Dockerfile](https://github.com/rust-lang/discord-mods-bot/blob/master/Dockerfile)
-- Rust dependencies: specified in the
-  [Cargo.toml](https://github.com/rust-lang/discord-mods-bot/blob/master/Cargo.toml)
-- Postgres version
-- GitHub Actions: specified in the
-  [workflows](https://github.com/rust-lang/discord-mods-bot/tree/master/.github/workflows)
-  directory
+See the [Decommission discord mods bot](https://github.com/rust-lang/simpleinfra/issues/756)
+GitHub issue for more information.