Revert of Add CheckOCSPDateValid() to net/cert/internal

net/cert/internal/parse_ocsp.h

Index: net/cert/internal/parse_ocsp.h
diff --git a/net/cert/internal/parse_ocsp.h b/net/cert/internal/parse_ocsp.h
index af5541d8785b565ce9f9da3c2ffb4097bda1830d..b9052aee9f6df9c4e4797a928b5c7024a917ba4e 100644
--- a/net/cert/internal/parse_ocsp.h
+++ b/net/cert/internal/parse_ocsp.h
@@ -16,10 +16,6 @@
 #include "net/der/parse_values.h"
 #include "net/der/parser.h"
 #include "net/der/tag.h"
-
-namespace base {
-class Time;
-}
 
 namespace net {
 
@@ -282,15 +278,6 @@
     const der::Input& cert_tbs_certificate_tlv,
     OCSPCertStatus* out);
 
-// Returns true if |response|, a valid OCSP response with a thisUpdate field and
-// potentially a nextUpdate field, is valid at |verify_time| and not older than
-// |max_age|. Expressed differently, returns true if |response.thisUpdate| <=
-// |verify_time| < response.nextUpdate, and |response.thisUpdate| >=
-// |verify_time| - |max_age|.
-NET_EXPORT_PRIVATE bool CheckOCSPDateValid(const OCSPSingleResponse& response,
-                                           const base::Time& verify_time,
-                                           const base::TimeDelta& max_age);
-
 }  // namespace net
 
 #endif  // NET_CERT_INTERNAL_PARSE_OCSP_H_