Clean config of radar-kotlin plugin

Author: pvannierop

build.gradle.kts

@@ -36,10 +36,6 @@ subprojects {
     // --- Vulnerability fixes end ---
 
     radarKotlin {
-        javaVersion.set(rootProject.libs.versions.java.get().toInt())
-        kotlinVersion.set(rootProject.libs.versions.kotlin)
-        slf4jVersion.set(rootProject.libs.versions.slf4j)
         log4j2Version.set(rootProject.libs.versions.log4j2)
-        junitVersion.set(rootProject.libs.versions.junit)
     }
 }

gradle/libs.versions.toml

@@ -16,7 +16,6 @@ okhttp = "4.12.0"
 firebaseAdmin = "9.6.0"
 radarSchemas = "0.8.16"
 ktor = "2.3.10"
-junit = "5.10.2"
 wiremock = "3.0.1"
 mockito = "5.11.0"
 netty = "4.1.125.Final"