Certificate Transparency: Remove the obsolete invalid sct status.

net/cert/sct_status_flags.cc

+// Copyright 2016 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 "net/cert/sct_status_flags.h"
+
+namespace net {
+
+namespace ct {
+
+bool IsValidSCTStatus(uint32_t status) {
+  switch (status) {
+    case net::ct::SCT_STATUS_LOG_UNKNOWN:
+    case net::ct::SCT_STATUS_INVALID_SIGNATURE:
+    case net::ct::SCT_STATUS_OK:
+    case net::ct::SCT_STATUS_INVALID_TIMESTAMP:
+      return true;
+    case net::ct::SCT_STATUS_NONE:
+      return false;
+  }
+
+  return false;
+}
+
+}  // namespace ct
+
+}  // namespace net