message: Always use BCH as ticker in estimatesmartfee RPC call
diff: @@ -900,11 +900,7 @@ UniValue estimatesmartfee(const UniValue &params, bool fHelp)
  "1. nblocks (numeric)\n"
  "\nResult:\n"
  "{\n"
  -#ifdef BITCOIN_CASH
  " \"feerate\" : x.x, (numeric) estimate fee-per-kilobyte (in BCH)\n"
  -#else
  - " \"feerate\" : x.x, (numeric) estimate fee-per-kilobyte (in BTC)\n"
  -#endif
  " \"blocks\" : n (numeric) block number where estimate was found\n"
  "}\n"
  "\n"
  