Remove redundant showChannelAlert

Author: tanx

src/computed/channel.js

@@ -75,9 +75,6 @@ const ComputedChannel = store => {
       const { channelBalanceClosingSatoshis, settings } = store;
       return toAmountLabel(channelBalanceClosingSatoshis, settings);
     },
-    get showChannelAlert() {
-      return (store.channels || []).length === 0;
-    },
     get channelStatus() {
       const {
         channelBalanceOpenSatoshis: opened,

test/unit/computed/channel.spec.js

@@ -57,7 +57,6 @@ describe('Computed Channels Unit Tests', () => {
       expect(store.channelBalanceInactiveLabel, 'to equal', '0');
       expect(store.channelBalancePendingLabel, 'to equal', '0');
       expect(store.channelBalanceClosingLabel, 'to equal', '0');
-      expect(store.showChannelAlert, 'to equal', true);
       expect(store.channelStatus, 'to equal', 'error');
     });
 
@@ -88,7 +87,6 @@ describe('Computed Channels Unit Tests', () => {
       expect(store.channelBalanceInactiveLabel, 'to match', /0[,.]0199/);
       expect(store.channelBalancePendingLabel, 'to match', /0[,.]006/);
       expect(store.channelBalanceClosingLabel, 'to match', /0[,.]005/);
-      expect(store.showChannelAlert, 'to equal', false);
       expect(store.channelStatus, 'to equal', 'success');
     });