Remove unnecessary instrumentation for several jank bugs.

net/http/http_auth_handler_negotiate.cc

Index: net/http/http_auth_handler_negotiate.cc
diff --git a/net/http/http_auth_handler_negotiate.cc b/net/http/http_auth_handler_negotiate.cc
index 557051cad6d551a2fa5a0c6afd38b553247c2cd4..422ddd729a27cf4dc9c24198c4dc30e0087cd60c 100644
--- a/net/http/http_auth_handler_negotiate.cc
+++ b/net/http/http_auth_handler_negotiate.cc
@@ -7,7 +7,6 @@
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/logging.h"
-#include "base/profiler/scoped_tracker.h"
 #include "base/strings/stringprintf.h"
 #include "net/base/address_family.h"
 #include "net/base/net_errors.h"
@@ -233,11 +232,6 @@ int HttpAuthHandlerNegotiate::GenerateAuthTokenImpl(
 }
 
 void HttpAuthHandlerNegotiate::OnIOComplete(int result) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/436634 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "436634 HttpAuthHandlerNegotiate::OnIOComplete"));
-
   int rv = DoLoop(result);
   if (rv != ERR_IO_PENDING)
     DoCallback(rv);