Remove unnecessary instrumentation for several jank bugs.

net/socket/client_socket_pool_base.cc

Index: net/socket/client_socket_pool_base.cc
diff --git a/net/socket/client_socket_pool_base.cc b/net/socket/client_socket_pool_base.cc
index a1d683a5e59415349bc1789e43a8280457e7efc4..0bc0056b8355a6fd2c5a3936dee61222a27076f5 100644
--- a/net/socket/client_socket_pool_base.cc
+++ b/net/socket/client_socket_pool_base.cc
@@ -8,7 +8,6 @@
 #include "base/format_macros.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
-#include "base/profiler/scoped_tracker.h"
 #include "base/stl_util.h"
 #include "base/strings/string_util.h"
 #include "base/time/time.h"
@@ -864,11 +863,6 @@ bool ClientSocketPoolBaseHelper::FindTopStalledGroup(
 
 void ClientSocketPoolBaseHelper::OnConnectJobComplete(
     int result, ConnectJob* job) {
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/436634 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "436634 ClientSocketPoolBaseHelper::OnConnectJobComplete"));
-
   DCHECK_NE(ERR_IO_PENDING, result);
   const std::string group_name = job->group_name();
   GroupMap::iterator group_it = group_map_.find(group_name);