message: Remove incorrect handling of address labels from RPC importaddresses
  Labels for addresses are not part of the supported input parameters, so this erroneously set the label for all imported addresses to the value of the 2nd parameter when the rescan option or more more than 1 address was specified.
diff: @@ -374,10 +374,6 @@ UniValue importaddresses(const UniValue &params, bool fHelp)
  HelpExampleCli("importaddresses", "no-rescan \"myscript\"") + "\nAs a JSON-RPC call\n" +
  HelpExampleRpc("importaddress", "\"myscript\""));
  - string strLabel = "";
  - if (params.size() > 1)
  - strLabel = params[1].get_str();
  -
  // Whether to perform rescan after import
  bool fRescanLocal = true;
  @@ -405,13 +401,13 @@ UniValue importaddresses(const UniValue &params, bool fHelp)
  CTxDestination dest = DecodeDestination(param);
  if (IsValidDestination(dest))
  {
  - ImportAddress(dest, strLabel);
  + ImportAddress(dest, "");
  }
  else if (IsHex(param))
  {
  bool fP2SH = true;
  std::vector<unsigned char> data(ParseHex(param));
  - ImportScript(CScript(data.begin(), data.end()), strLabel, fP2SH);
  + ImportScript(CScript(data.begin(), data.end()), "", fP2SH);
  }
  else
  {
  