post-review changes

Author: SylvainJuge

instrumentation/grails-3.0/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/grails/DefaultGrailsControllerClassInstrumentation.java

@@ -14,7 +14,6 @@
 
 import io.opentelemetry.context.Context;
 import io.opentelemetry.context.Scope;
-import io.opentelemetry.javaagent.bootstrap.Java8BytecodeBridge;
 import io.opentelemetry.javaagent.extension.instrumentation.TypeInstrumentation;
 import io.opentelemetry.javaagent.extension.instrumentation.TypeTransformer;
 import javax.annotation.Nullable;
@@ -57,7 +56,7 @@ private AdviceScope(HandlerData handlerData, Context context, Scope scope) {
       @Nullable
       public static AdviceScope start(
           Object controller, @Nullable String action, String defaultActionName) {
-        Context parentContext = Java8BytecodeBridge.currentContext();
+        Context parentContext = Context.current();
         HandlerData handlerData =
             new HandlerData(controller, action != null ? action : defaultActionName);
         if (!instrumenter().shouldStart(parentContext, handlerData)) {