message: Remove extra validation in createAddress
  The `count` field was validated twice, remove the less specific one
diff: @@ -669,10 +669,6 @@ Wallet.prototype.createAddress = function({ chain = undefined, gasPrice = undefi
  addressParams.lowPriority = lowPriority;
  }
  - if (!_.isInteger(count) || count <= 0) {
  - throw new Error('count has to be a positive integer');
  - }
  -
  // get keychains for address verification
  const keychains = yield Promise.map(this._wallet.keys, k => this.baseCoin.keychains().get({ id: k, reqId }));
  const rootAddress = _.get(this._wallet, 'receiveAddress.address');
  