fix(java-concurrent): Fix FJP instrumentation on Java 21+

From Java 21+, do no more stop context capture for ForkJoinPool.execute(Runnable).

Author: PerfectSlayer

dd-java-agent/instrumentation/java-concurrent/java-concurrent-21/src/main/java/datadog/trace/instrumentation/java/concurrent/structuredconcurrency/StructuredTaskScopeInstrumentation.java

@@ -1,21 +1,16 @@
 package datadog.trace.instrumentation.java.concurrent.structuredconcurrency;
 
 import static datadog.trace.bootstrap.instrumentation.java.concurrent.AdviceUtils.capture;
-import static datadog.trace.bootstrap.instrumentation.java.concurrent.ExcludeFilter.ExcludeType.FORK_JOIN_TASK;
-import static java.util.Collections.singleton;
 import static java.util.Collections.singletonMap;
 import static net.bytebuddy.matcher.ElementMatchers.isConstructor;
 
 import com.google.auto.service.AutoService;
-import datadog.trace.agent.tooling.ExcludeFilterProvider;
 import datadog.trace.agent.tooling.Instrumenter;
 import datadog.trace.agent.tooling.InstrumenterModule;
 import datadog.trace.api.Platform;
 import datadog.trace.bootstrap.ContextStore;
 import datadog.trace.bootstrap.InstrumentationContext;
-import datadog.trace.bootstrap.instrumentation.java.concurrent.ExcludeFilter;
 import datadog.trace.bootstrap.instrumentation.java.concurrent.State;
-import java.util.Collection;
 import java.util.Map;
 import net.bytebuddy.asm.Advice;
 
@@ -27,10 +22,7 @@
 @SuppressWarnings("unused")
 @AutoService(InstrumenterModule.class)
 public class StructuredTaskScopeInstrumentation extends InstrumenterModule.Tracing
-    implements Instrumenter.ForBootstrap,
-        Instrumenter.ForSingleType,
-        Instrumenter.HasMethodAdvice,
-        ExcludeFilterProvider {
+    implements Instrumenter.ForBootstrap, Instrumenter.ForSingleType, Instrumenter.HasMethodAdvice {
 
   public StructuredTaskScopeInstrumentation() {
     super("java_concurrent", "structured_task_scope");
@@ -57,14 +49,6 @@ public void methodAdvice(MethodTransformer transformer) {
     transformer.applyAdvice(isConstructor(), getClass().getName() + "$ConstructorAdvice");
   }
 
-  @Override
-  public Map<ExcludeFilter.ExcludeType, ? extends Collection<String>> excludedClasses() {
-    // Prevent the ForkJoinPool instrumentation to enable the task scope too early on the carrier
-    // thread rather than on the expected running thread, which is virtual by default.
-    return singletonMap(
-        FORK_JOIN_TASK, singleton("java.util.concurrent.ForkJoinTask$RunnableExecuteAction"));
-  }
-
   public static final class ConstructorAdvice {
     @Advice.OnMethodExit
     public static <T> void captureScope(