PlaylistPrint: fix -Wunused #ifndef ENABLE_DATABASE

src/PlaylistPrint.cxx

@@ -143,6 +143,7 @@ spl_print(Response &r, Partition &partition,
 	  Error &error)
 {
 #ifndef ENABLE_DATABASE
+	(void)partition;
 	(void)detail;
 #endif
 

src/command/OtherCommands.cxx

@@ -283,6 +283,7 @@ handle_update(Client &client, Request args, Response &r, bool discard)
 	if (db != nullptr)
 		return handle_update(r, *db, path, discard);
 #else
+	(void)client;
 	(void)args;
 	(void)discard;
 #endif