Remove the Krb5 1.3.x-specific hack which mucks about with
libkrb5 internals, and shouldn't.

--- mod_auth_kerb-5.4/src/mod_auth_kerb.c.rcopshack
+++ mod_auth_kerb-5.4/src/mod_auth_kerb.c
@@ -285,34 +285,6 @@ mkstemp(char *template)
 }
 #endif
 
-#if defined(KRB5) && !defined(HEIMDAL)
-/* Needed to work around problems with replay caches */
-#include "mit-internals.h"
-
-/* This is our replacement krb5_rc_store function */
-static krb5_error_code KRB5_LIB_FUNCTION
-mod_auth_kerb_rc_store(krb5_context context, krb5_rcache rcache,
-                       krb5_donot_replay_internal *donot_replay)
-{
-   return 0;
-}
-
-/* And this is the operations vector for our replay cache */
-const krb5_rc_ops_internal mod_auth_kerb_rc_ops = {
-  0,
-  "dfl",
-  krb5_rc_dfl_init,
-  krb5_rc_dfl_recover,
-  krb5_rc_dfl_destroy,
-  krb5_rc_dfl_close,
-  mod_auth_kerb_rc_store,
-  krb5_rc_dfl_expunge,
-  krb5_rc_dfl_get_span,
-  krb5_rc_dfl_get_name,
-  krb5_rc_dfl_resolve
-};
-#endif
-
 /*************************************************************************** 
  Auth Configuration Initialization
  ***************************************************************************/
@@ -1252,31 +1224,6 @@ get_gss_creds(request_rec *r,
       return HTTP_INTERNAL_SERVER_ERROR;
    }
 
-#ifndef HEIMDAL
-   /*
-    * With MIT Kerberos 5 1.3.x the gss_cred_id_t is the same as
-    * krb5_gss_cred_id_t and krb5_gss_cred_id_rec contains a pointer to
-    * the replay cache.
-    * This allows us to override the replay cache function vector with
-    * our own one.
-    * Note that this is a dirty hack to get things working and there may
-    * well be unknown side-effects.
-    */
-   {
-      krb5_gss_cred_id_t gss_creds = (krb5_gss_cred_id_t) *server_creds;
-
-      /* First we try to verify we are linked with 1.3.x to prevent from
-         crashing when linked with 1.4.x */
-      if (gss_creds && (gss_creds->usage == GSS_C_ACCEPT)) {
-	 if (gss_creds->rcache && gss_creds->rcache->ops &&
-	     gss_creds->rcache->ops->type &&  
-	     memcmp(gss_creds->rcache->ops->type, "dfl", 3) == 0)
-          /* Override the rcache operations */
-	 gss_creds->rcache->ops = &mod_auth_kerb_rc_ops;
-      }
-   }
-#endif
-   
    return 0;
 }