starknet_os_flow_tests: add multicall prove test; drop balance_of test#14082

Yoni-Starkware merged 1 commit into

mainstarkware-libs/sequencer:mainfrom

05-19-multicall_keccak_ec_op_prove_test_remove_balance_ofstarkware-libs/sequencer:05-19-multicall_keccak_ec_op_prove_test_remove_balance_ofCopy head branch name to clipboard