[NOT COMMITTED] Inline TaskTraits' destructor per it only having POD type members

base/task_scheduler/task_traits.cc

Index: base/task_scheduler/task_traits.cc
diff --git a/base/task_scheduler/task_traits.cc b/base/task_scheduler/task_traits.cc
index 5a0906402ecb251a2a8f3d83f00ae599c64d5bb5..d929fa2caf99697c56ac5f482cb9990d51057726 100644
--- a/base/task_scheduler/task_traits.cc
+++ b/base/task_scheduler/task_traits.cc
@@ -16,8 +16,6 @@ TaskTraits::TaskTraits()
       priority_(TaskPriority::BACKGROUND),
       shutdown_behavior_(TaskShutdownBehavior::BLOCK_SHUTDOWN) {}
 
-TaskTraits::~TaskTraits() = default;
-
 TaskTraits& TaskTraits::WithFileIO() {
   with_file_io_ = true;
   return *this;