client: remove faucet retry logic
client: remove faucet retry logic

Remove the retry logic previously needed to compensate for the race
condition in faucet (which no longer exists).

Closes: #8310

aptos-labs/aptos-core,aptos-labs/aptos-core,libra/libra,aptos-labs/aptos-core,libra/libra,aptos-labs/aptos-core,aptos-labs/aptos-core,libra/libra,aptos-labs/aptos-core,libra/libra,libra/libra,aptos-labs/aptos-core