Remove outdated instance [skip ci]

Closes #1102

README.md

@@ -663,7 +663,6 @@ A lot of the app currently piggybacks on Google's existing support for fetching
 | [https://whoogle.lunar.icu](https://whoogle.lunar.icu) | 🇩🇪 DE | Multi-choice | ✅ |
 | [https://wgl.frail.duckdns.org](https://wgl.frail.duckdns.org) | 🇧🇷 BR | Multi-choice | |
 | [https://whoogle.no-logs.com](https://whoogle.no-logs.com/) | 🇸🇪 SE | Multi-choice | |
-| [https://search.rubberverse.xyz](https://search.rubberverse.xyz) | 🇵🇱 PL | English | |
 | [https://whoogle.ftw.lol](https://whoogle.ftw.lol) | 🇩🇪 DE | Multi-choice | |
 | [https://whoogle-search--replitcomreside.repl.co](https://whoogle-search--replitcomreside.repl.co) | 🇺🇸 US | English |  |
 | [https://search.notrustverify.ch](https://search.notrustverify.ch) | 🇨🇭 CH | Multi-choice |  |

misc/instances.txt

@@ -15,7 +15,6 @@ https://whoogle2.ungovernable.men
 https://whoogle3.ungovernable.men
 https://wgl.frail.duckdns.org
 https://whoogle.no-logs.com
-https://search.rubberverse.xyz
 https://whoogle.ftw.lol
 https://whoogle-search--replitcomreside.repl.co
 https://search.notrustverify.ch