chore: remove no longer used plugins

Author: simschla

settings.gradle

@@ -25,12 +25,6 @@ plugins {
 
 	// https://github.com/radarsh/gradle-test-logger-plugin/blob/develop/CHANGELOG.md
 	id 'com.adarshr.test-logger' version '4.0.0' apply false
-
-	// https://github.com/graalvm/native-build-tools/releases
-	id 'org.graalvm.buildtools.native' version '0.10.5' apply false
-
-	// https://github.com/GradleUp/shadow/releases
-	id 'com.gradleup.shadow' version '8.3.6' apply false
 }
 
 rootProject.name = 'spotless-cli'