Remove unused sampling code from CookieMonster.

net/cookies/cookie_monster.cc

Index: net/cookies/cookie_monster.cc
diff --git a/net/cookies/cookie_monster.cc b/net/cookies/cookie_monster.cc
index 1d38fc09acea414d1292160b0ebe24d0031cd616..76ca75f1d34a924c44dc3d2397b8272db89216b1 100644
--- a/net/cookies/cookie_monster.cc
+++ b/net/cookies/cookie_monster.cc
@@ -778,10 +778,6 @@ class CookieMonster::GetCookiesWithOptionsTask : public CookieMonsterTask {
 };
 
 void CookieMonster::GetCookiesWithOptionsTask::Run() {
-  // TODO(mkwst): Remove ScopedTracker below once crbug.com/456373 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "456373 CookieMonster::GetCookiesWithOptionsTask::Run"));
   std::string cookie =
       this->cookie_monster()->GetCookiesWithOptions(url_, options_);
   if (!callback_.is_null())
@@ -1683,11 +1679,6 @@ CookieMonster::CookieMap::iterator CookieMonster::InternalInsertCookie(
     bool sync_to_store) {
   DCHECK(thread_checker_.CalledOnValidThread());
 
-  // TODO(mkwst): Remove ScopedTracker below once crbug.com/456373 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "456373 CookieMonster::InternalInsertCookie"));
-
   if ((cc->IsPersistent() || persist_session_cookies_) && store_.get() &&
       sync_to_store)
     store_->AddCookie(*cc);