Remove reference to nitrite-spring-boot-starter

Closes gh-31892

Author: snicoll

spring-boot-project/spring-boot-starters/README.adoc

@@ -166,9 +166,6 @@ do as they were designed before this was clarified.
 | https://developer.nexmo.com/[Nexmo]
 | https://github.com/nexmo/nexmo-spring-boot-starter
 
-| https://funthomas424242.github.io/nitrite-spring-boot-starter/[Nitrite Database]
-| https://github.com/FunThomas424242/nitrite-spring-boot-starter
-
 | https://github.com/nutzam/nutz[Nutz]
 | https://github.com/nutzam/nutzmore