I used to do Air drop and bounty. Get all coins in time when the market is down. The value of all these coins lost 90% even now looking at it I do not believe it is no longer valid.
I cannot sell them because no one buys them, and its value can only be enough to transfer to exchange.
So do you have a way to hide it or delete all the coins from your wallet?
Maybe you're tired of the coins you generate from Airdrop or project coins. There is no way to remove your coins. Even each transaction sends coins and receives all the coins recorded in the wallet, and cannot be lost on the transaction record.
Even if your coins don't have a sell value, we recommend storing them in your wallet. I'm sure if sometime later if the Altcoin season arrives, I think your coin will have a good selling value.