Convert authdir_mode_handles_descs() to alternative wrappers

-authdir_mode_handles_descs(options, ROUTER_PURPOSE_BRIDGE) to authdir_mode_bridge(options).

- authdir_mode_handles_descs(options, ROUTER_PURPOSE_GENERAL) to authdir_mode_v3(options).

src/or/router.c

@@ -1065,7 +1065,7 @@ init_keys(void)
   /* 4. Build our router descriptor. */
   /* Must be called after keys are initialized. */
   mydesc = router_get_my_descriptor();
-  if (authdir_mode_handles_descs(options, ROUTER_PURPOSE_GENERAL)) {
+  if (authdir_mode_v3(options)) {
     const char *m = NULL;
     routerinfo_t *ri;
     /* We need to add our own fingerprint so it gets recognized. */
@@ -1615,7 +1615,7 @@ authdir_mode_handles_descs(const or_options_t *options, int purpose)
   else if (purpose == ROUTER_PURPOSE_GENERAL)
     return authdir_mode_v3(options);
   else if (purpose == ROUTER_PURPOSE_BRIDGE)
-    return (options->BridgeAuthoritativeDir);
+    return authdir_mode_bridge(options);
   else
     return 0;
 }

src/or/routerlist.c

@@ -5164,7 +5164,7 @@ update_consensus_router_descriptor_downloads(time_t now, int is_vote,
       smartlist_add(downloadable, rs->descriptor_digest);
   } SMARTLIST_FOREACH_END(rsp);
 
-  if (!authdir_mode_handles_descs(options, ROUTER_PURPOSE_GENERAL)
+  if (!authdir_mode_v3(options)
       && smartlist_len(no_longer_old)) {
     routerlist_t *rl = router_get_routerlist();
     log_info(LD_DIR, "%d router descriptors listed in consensus are "