revert commented code that was there for a reason

Author: SylvainJuge

instrumentation/kotlinx-coroutines/kotlinx-coroutines-1.0/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/kotlinxcoroutines/instrumentationannotations/WithSpanInstrumentation.java

@@ -324,6 +324,14 @@ public void visitEnd() {
               // initialize our local variables, start span and open scope
               {
                 MethodNode temp = new MethodNode();
+                // insert the following code
+                //
+                // request =
+                // AnnotationInstrumentationHelper.createMethodRequest(InstrumentedClass.class,
+                //   instrumentedMethodName, withSpanValue, withSpanKind)
+                // context = AnnotationInstrumentationHelper.enterCoroutine(label, continuation,
+                // request)
+                // scope = AnnotationInstrumentationHelper.openScope(context)
                 if (hasBlockingOperation) {
                   // value of label is on stack
                   // label is used in call to enterCoroutine and later in @SpanAttribute handling