Revert semantic changes for fd_notify_on_*
diff --git a/src/core/lib/iomgr/buffer_list.h b/src/core/lib/iomgr/buffer_list.h
index 0f66dcc..cbbf50a 100644
--- a/src/core/lib/iomgr/buffer_list.h
+++ b/src/core/lib/iomgr/buffer_list.h
@@ -31,6 +31,8 @@
 
 namespace grpc_core {
 struct Timestamps {
+  /* TODO(yashykt): This would also need to store OPTSTAT once support is added
+   */
   gpr_timespec sendmsg_time;
   gpr_timespec scheduled_time;
   gpr_timespec sent_time;