Remove org.unbroken-dome.test-sets plugin (#7951)

Resolves
https://github.com/open-telemetry/opentelemetry-java-instrumentation/issues/7911

conventions/src/main/kotlin/otel.java-conventions.gradle.kts

@@ -346,16 +346,6 @@ afterEvaluate {
         )
       }
     }
-
-    if (plugins.hasPlugin("org.unbroken-dome.test-sets") && configurations.findByName("latestDepTestRuntime") != null) {
-      doFirst {
-        val testArtifacts = configurations.testRuntimeClasspath.get().resolvedConfiguration.resolvedArtifacts
-        val latestTestArtifacts = configurations.getByName("latestDepTestRuntimeClasspath").resolvedConfiguration.resolvedArtifacts
-        if (testArtifacts == latestTestArtifacts) {
-          throw IllegalStateException("latestDepTest dependencies are identical to test")
-        }
-      }
-    }
   }
 }
 

settings.gradle.kts

@@ -7,7 +7,6 @@ pluginManagement {
     id("com.gradle.plugin-publish") version "1.1.0"
     id("io.github.gradle-nexus.publish-plugin") version "1.2.0"
     id("org.jetbrains.kotlin.jvm") version "1.8.0"
-    id("org.unbroken-dome.test-sets") version "4.0.0"
     id("org.xbib.gradle.plugin.jflex") version "1.7.0"
     id("org.unbroken-dome.xjc") version "2.0.0"
   }