Chore: Remove dead code related to billing (#935)

- remove subscription model
- remove billing-related code

app/javascript/dashboard/store/index.js

@@ -4,7 +4,6 @@ import Vuex from 'vuex';
 import accounts from './modules/accounts';
 import agents from './modules/agents';
 import auth from './modules/auth';
-import billing from './modules/billing';
 import cannedResponse from './modules/cannedResponse';
 import Channel from './modules/channels';
 import contactConversations from './modules/contactConversations';
@@ -27,7 +26,6 @@ export default new Vuex.Store({
     accounts,
     agents,
     auth,
-    billing,
     cannedResponse,
     Channel,
     contactConversations,

app/javascript/dashboard/store/modules/billing.js

@@ -1,60 +0,0 @@
-/* eslint no-console: 0 */
-/* eslint no-param-reassign: 0 */
-/* eslint no-shadow: 0 */
-import * as types from '../mutation-types';
-import Billing from '../../api/billing';
-
-const state = {
-  fetchingStatus: false,
-  billingDetails: {},
-  status: null,
-};
-
-const getters = {
-  getBillingDetails(_state) {
-    return _state.billingDetails;
-  },
-  billingFetchStatus(_state) {
-    return _state.fetchingStatus;
-  },
-};
-
-const actions = {
-  fetchSubscription({ commit }) {
-    commit(types.default.TOGGLE_SUBSCRIPTION_LOADING, true);
-    Billing.getSubscription()
-      .then(billingDetails => {
-        commit(types.default.SET_SUBSCRIPTION, billingDetails.data);
-        commit(
-          types.default.TOGGLE_SUBSCRIPTION_LOADING,
-          false,
-          billingDetails.status
-        );
-      })
-      .catch(error => {
-        const { response } = error;
-        commit(
-          types.default.TOGGLE_SUBSCRIPTION_LOADING,
-          false,
-          response.status
-        );
-      });
-  },
-};
-
-const mutations = {
-  [types.default.SET_SUBSCRIPTION](_state, billingDetails) {
-    _state.billingDetails = billingDetails;
-  },
-  [types.default.TOGGLE_SUBSCRIPTION_LOADING](_state, flag, apiStatus) {
-    _state.fetchingStatus = flag;
-    _state.status = apiStatus;
-  },
-};
-
-export default {
-  state,
-  getters,
-  actions,
-  mutations,
-};

app/javascript/dashboard/store/mutation-types.js

@@ -93,10 +93,6 @@ export default {
   SET_ACCOUNT_SUMMARY: 'SET_ACCOUNT_SUMMARY',
   TOGGLE_ACCOUNT_REPORT_LOADING: 'TOGGLE_ACCOUNT_REPORT_LOADING',
 
-  // Billings
-  SET_SUBSCRIPTION: 'SET_SUBSCRIPTION',
-  TOGGLE_SUBSCRIPTION_LOADING: 'TOGGLE_SUBSCRIPTION_LOADING',
-
   // Conversation Metadata
   SET_CONVERSATION_METADATA: 'SET_CONVERSATION_METADATA',