Ability to delete abi and code

[jcalfee]

The following would allow users to remove code and or abi:

Make the last parameter "optional" so a null value can be provided:

// remove contract from the blockchain
eos.setcode('currency', 0, 0, null/*wasm*/)
eos.setabi('currency', null /*abi*/)

[xJonathanLEI]

With eosjs, the following code should do the trick:

eos.setcode(account_name, 0, 0, new Uint8Array());

[hama]

how to use cleos ?

[betdiceone]

With eosjs, the following code should do the trick:

eos.setcode(account_name, 0, 0, new Uint8Array());

So how to remove abi?

[brianjohnson5972]

This was provided by #5442