update-ids-ruleset: Disable provider if not dl_url can be obtained

Unsupported/Removed provides does not longer have these information

Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

src/scripts/update-ids-ruleset

@@ -106,7 +106,7 @@ foreach my $id (keys %providers) {
 	my $autoupdate_status = $providers{$id}[3];
 
 	# Skip unsupported providers.
-	next unless($IDS::Ruleset::Providers{$provider});
+	next unless($IDS::Ruleset::Providers{$provider}{'dl_url'});
 
 	# Skip the provider if it is not enabled.
 	next unless($enabled_status eq "enabled");