Remove the SHA-1 deprecation field trial code; the plan is live

chrome/browser/ui/website_settings/website_settings.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/website_settings/website_settings.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 494 matching lines @@
         site_identity_details_.assign(l10n_util::GetStringFUTF16(
             GetSiteIdentityDetailsMessageByCTInfo(
                 ssl.signed_certificate_timestamp_ids, false /* not EV */),
             issuer_name));
       }
       // The date after which no new SHA-1 certificates may be issued.
       // 2016-01-01 00:00:00 UTC
       static const int64_t kSHA1LastIssuanceDate = INT64_C(13096080000000000);
       if ((ssl.cert_status & net::CERT_STATUS_SHA1_SIGNATURE_PRESENT) &&
           cert->valid_expiry() >
-              base::Time::FromInternalValue(kSHA1LastIssuanceDate) &&
-          // NOTE: This use of SHA1IdentityUIWarning needs to be kept in sync
-          // with ToolbarModelImpl::IsDeprecatedSHA1Present().
-          base::FieldTrialList::FindFullName("SHA1IdentityUIWarning") ==
-              "Enabled") {
+              base::Time::FromInternalValue(kSHA1LastIssuanceDate)) {
         site_identity_status_ =
             SITE_IDENTITY_STATUS_DEPRECATED_SIGNATURE_ALGORITHM;
         site_identity_details_ +=
             UTF8ToUTF16("\n\n") +
             l10n_util::GetStringUTF16(
                 IDS_PAGE_INFO_SECURITY_TAB_DEPRECATED_SIGNATURE_ALGORITHM);
       }
     }
   } else {
     // HTTP or HTTPS with errors (not warnings).
@@ skipping 275 matching lines @@
   if (visited_before_today) {
     first_visit_text = l10n_util::GetStringFUTF16(
         IDS_PAGE_INFO_SECURITY_TAB_VISITED_BEFORE_TODAY,
         base::TimeFormatShortDate(first_visit));
   } else {
     first_visit_text = l10n_util::GetStringUTF16(
         IDS_PAGE_INFO_SECURITY_TAB_FIRST_VISITED_TODAY);
   }
   ui_->SetFirstVisit(first_visit_text);
 }