remove mkaczanowski pastebin (unmaintained since 2021) (#3571)

- ref. https://github.com/awesome-selfhosted/awesome-selfhosted/issues/3558
- `WARNING:awesome_lint.py: mkaczanowski pastebin: last updated -542 days, 9:53:39.978367 ago, older than 365 days`

README.md

@@ -1476,7 +1476,6 @@ A [pastebin](https://en.wikipedia.org/wiki/Pastebin) is a type of online content
 - [Hasty Paste](https://enchantedcode.co.uk/hasty-paste/) - A place to quickly paste some text and share it. Mostly used for sharing debug logs and such to help developers provide tech support. The project aims to be both fast and minimal. ([Source Code](https://github.com/enchant97/hasty-paste)) `AGPL-3.0` `Docker/Python`
 - [LogPaste](https://github.com/mtlynch/logpaste) - Minimal pastebin web app that's easy to self-host and persists data to any S3-compatible backend. ([Demo](https://logpaste.com/)) `MIT` `Go`
 - [MicroBin](https://github.com/szabodanika/microbin) - Simple, performant, configurable, entirely self-contained pastebin and URL shortener. `BSD-3-Clause` `Rust`
-- [mkaczanowski pastebin](https://github.com/mkaczanowski/pastebin) - Simple, fast, feature-rich, standalone pastebin service. `MIT` `Rust`
 - [mojopaste](https://metacpan.org/dist/App-mojopaste) - Perl based pastebin. ([Demo](https://p.thorsen.pm/), [Source Code](https://github.com/jhthorsen/app-mojopaste)) `Artistic-2.0` `Perl`
 - [MokinToken](https://github.com/nexus-uw/mokintoken) - Clientside encrypted pastebin using tweetnacl. `Unlicense` `PHP`
 - [paaster](https://paaster.io) - Paaster is a secure by default end-to-end encrypted pastebin built with the objective of simplicity. ([Source Code](https://github.com/WardPearce/paaster)) `GPL-3.0` `Docker`