Revert "Add winbind:online check timeout parameter"

This reverts commit 9920473.
(This used to be commit 34a32db)

source3/winbindd/winbindd_cm.c

@@ -292,22 +292,6 @@ static void check_domain_online_handler(struct event_context *ctx,
 static void calc_new_online_timeout_check(struct winbindd_domain *domain)
 {
 	int wbc = lp_winbind_cache_time();
-	int domain_online_check;
-
-	/*
-	 * If "winbind:online check timeout" is set explicitly,
-	 * override the default of "winbind cache timeout"
-	 *
-	 * Add this as a parametric option and don't document it. The
-	 * whole offline abuse for non-reachable DCs needs
-	 * fixing. Till then, use this hackish parameter.
-	 */
-
-	domain_online_check = lp_parm_int(-1, "winbind",
-					  "online check timeout", 0);
-	if (domain_online_check != 0) {
-		wbc = domain_online_check;
-	}
 
 	if (domain->startup) {
 		domain->check_online_timeout = 10;