Remove a duplicate call to update_microdesc_downloads()

This call happens before we update our entry guards, so it needs to be
removed for the fix to #23862 to work.

src/or/directory.c

@@ -2122,10 +2122,9 @@ connection_dir_client_reached_eof(dir_connection_t *conn)
     /* If we launched other fetches for this consensus, cancel them. */
     connection_dir_close_consensus_fetches(conn, flavname);
 
-    /* launches router downloads as needed */
+    /* update the list of routers and directory guards */
     routers_update_all_from_networkstatus(now, 3);
     update_microdescs_from_networkstatus(now);
-    update_microdesc_downloads(now);
     directory_info_has_arrived(now, 0, 0);
     if (authdir_mode_v3(get_options())) {
       sr_act_post_consensus(