fix(lint): fox linting errors

app/reducers/payment.js

@@ -2,7 +2,7 @@ import { createSelector } from 'reselect'
 import { ipcRenderer } from 'electron'
 import { btc, usd } from '../utils'
 import { setForm, resetForm } from './form'
-import { showModal, hideModal } from './modal'
+import { showModal } from './modal'
 
 // ------------------------------------
 // Constants
@@ -88,7 +88,7 @@ export const sendSuccessful = (event, { amount, addr, txid }) => (dispatch) => {
   dispatch(resetForm())
 }
 
-export const sendCoinsError = (event, { error }) => (dispatch) => {
+export const sendCoinsError = () => (dispatch) => {
   dispatch({ type: PAYMENT_FAILED })
 }