Delete SecCertificate equality hacks for old macOS versions

net/cert/test_root_certs_mac.cc

Index: net/cert/test_root_certs_mac.cc
diff --git a/net/cert/test_root_certs_mac.cc b/net/cert/test_root_certs_mac.cc
index af1e9c18dbe3ebc91f23642bffd09877545108ed..fcbca9729087ff78522bbe093c7c4863ac8510ee 100644
--- a/net/cert/test_root_certs_mac.cc
+++ b/net/cert/test_root_certs_mac.cc
@@ -11,41 +11,6 @@
 
 namespace net {
 
-namespace {
-
-typedef OSStatus (*SecTrustSetAnchorCertificatesOnlyFuncPtr)(SecTrustRef,
-                                                             Boolean);
-
-Boolean OurSecCertificateEqual(const void* value1, const void* value2) {
-  if (CFGetTypeID(value1) != SecCertificateGetTypeID() ||
-      CFGetTypeID(value2) != SecCertificateGetTypeID())
-    return CFEqual(value1, value2);
-  return X509Certificate::IsSameOSCert(
-      reinterpret_cast<SecCertificateRef>(const_cast<void*>(value1)),
-      reinterpret_cast<SecCertificateRef>(const_cast<void*>(value2)));
-}
-
-const void* RetainWrapper(CFAllocatorRef unused, const void* value) {
-  return CFRetain(value);
-}
-
-void ReleaseWrapper(CFAllocatorRef unused, const void* value) {
-  CFRelease(value);
-}
-
-// CFEqual prior to 10.6 only performed pointer checks on SecCertificateRefs,
-// rather than checking if they were the same (logical) certificate, so a
-// custom structure is used for the array callbacks.
-const CFArrayCallBacks kCertArrayCallbacks = {
-  0,  // version
-  RetainWrapper,
-  ReleaseWrapper,
-  CFCopyDescription,
-  OurSecCertificateEqual,
-};
-
-}  // namespace
-
 bool TestRootCerts::Add(X509Certificate* certificate) {
   if (CFArrayContainsValue(temporary_roots_,
                            CFRangeMake(0, CFArrayGetCount(temporary_roots_)),
@@ -80,8 +45,8 @@ void TestRootCerts::SetAllowSystemTrust(bool allow_system_trust) {
 TestRootCerts::~TestRootCerts() {}
 
 void TestRootCerts::Init() {
-  temporary_roots_.reset(CFArrayCreateMutable(kCFAllocatorDefault, 0,
-                                              &kCertArrayCallbacks));
+  temporary_roots_.reset(
+      CFArrayCreateMutable(kCFAllocatorDefault, 0, &kCFTypeArrayCallBacks));
   allow_system_trust_ = true;
 }