crc32Del function
Given an account address with a prepended big-endian CRC32 checksum, verify the checksum and remove it. @param {Buffer} buf @returns {Buffer}
Implementation
Uint8List crc32Del(Uint8List buf) {
final res = buf.sublist(4);
assert(getCrc32(res.buffer) == buf.buffer.asByteData().getUint32(0));
return res;
}