Remove unused CookiePreferences from report sender and never send cookies

chrome/browser/ssl/chrome_expect_ct_reporter_unittest.cc

Index: chrome/browser/ssl/chrome_expect_ct_reporter_unittest.cc
diff --git a/chrome/browser/ssl/chrome_expect_ct_reporter_unittest.cc b/chrome/browser/ssl/chrome_expect_ct_reporter_unittest.cc
index e3dc12d965c54c9155822760fec6d3281fa97387..33361efe521ddaeb2d1626649dd50ef62b01f8ce 100644
--- a/chrome/browser/ssl/chrome_expect_ct_reporter_unittest.cc
+++ b/chrome/browser/ssl/chrome_expect_ct_reporter_unittest.cc
@@ -35,8 +35,7 @@ const char kFailureHistogramName[] = "SSL.ExpectCTReportFailure2";
 // serialized report to be sent.
 class TestCertificateReportSender : public net::ReportSender {
  public:
-  TestCertificateReportSender()
-      : ReportSender(nullptr, net::ReportSender::DO_NOT_SEND_COOKIES) {}
+  TestCertificateReportSender() : ReportSender(nullptr) {}
   ~TestCertificateReportSender() override {}
 
   void Send(