No. Litecoin is still alive in the market. It still exist silently. Litecoin is backed up by Bitcoin. So, as long as bitcoin is existing, Litecoin will also exist. It wouldn't be remove in the market easily.
Ltc is a fork of bitcoin. so it doest't depend on it. Even if bitcoin will die, the litecoin will alive and can be used for transactions and so on. But the price will be lower, sure.