Revert of QUIC - track the time it takes for OnStreamReadyCallback() to

net/http/http_stream_factory_impl_job.cc

Index: net/http/http_stream_factory_impl_job.cc
diff --git a/net/http/http_stream_factory_impl_job.cc b/net/http/http_stream_factory_impl_job.cc
index 415faca247130e20491abdb97c5740d8827d04fe..221a31873d04ab81a9979c091fc1119bfd7c4ac5 100644
--- a/net/http/http_stream_factory_impl_job.cc
+++ b/net/http/http_stream_factory_impl_job.cc
@@ -362,9 +362,6 @@ void HttpStreamFactoryImpl::Job::OnStreamReadyCallback() {
   DCHECK_NE(job_type_, PRECONNECT);
   DCHECK(!delegate_->for_websockets());
 
-  UMA_HISTOGRAM_TIMES("Net.HttpStreamFactoryJob.StreamReadyCallbackTime",
-                      base::TimeTicks::Now() - job_stream_ready_start_time_);
-
   MaybeCopyConnectionAttemptsFromSocketOrHandle();
 
   delegate_->OnStreamReady(this, server_ssl_config_, proxy_info_);
@@ -585,7 +582,6 @@ int HttpStreamFactoryImpl::Job::RunLoop(int result) {
         }
       } else {
         DCHECK(stream_.get());
-        job_stream_ready_start_time_ = base::TimeTicks::Now();
         base::ThreadTaskRunnerHandle::Get()->PostTask(
             FROM_HERE,
             base::Bind(&Job::OnStreamReadyCallback, ptr_factory_.GetWeakPtr()));