net: remove DNS certificate checking code.

chrome/browser/profiles/profile_io_data.cc

Index: chrome/browser/profiles/profile_io_data.cc
diff --git a/chrome/browser/profiles/profile_io_data.cc b/chrome/browser/profiles/profile_io_data.cc
index d92f4cec3e2489459375a0883388abd134a1d6b7..297cee0000bebaa7914bd0a301826550d4960a20 100644
--- a/chrome/browser/profiles/profile_io_data.cc
+++ b/chrome/browser/profiles/profile_io_data.cc
@@ -26,7 +26,6 @@
 #include "chrome/browser/io_thread.h"
 #include "chrome/browser/media/media_internals.h"
 #include "chrome/browser/net/chrome_cookie_notification_details.h"
-#include "chrome/browser/net/chrome_dns_cert_provenance_checker_factory.h"
 #include "chrome/browser/net/chrome_fraudulent_certificate_reporter.h"
 #include "chrome/browser/net/chrome_net_log.h"
 #include "chrome/browser/net/chrome_network_delegate.h"
@@ -433,9 +432,6 @@ void ProfileIOData::LazyInitialize() const {
         profile_params_->profile,
         &enable_referrers_));
 
-  dns_cert_checker_.reset(
-      CreateDnsCertProvenanceChecker(io_thread_globals->dnsrr_resolver.get(),
-                                     main_request_context_));
   fraudulent_certificate_reporter_.reset(
       new chrome_browser_net::ChromeFraudulentCertificateReporter(
           main_request_context_));