clean up some setState calls

Author: hawkrives

source/views/sis/balances.js

@@ -49,19 +49,19 @@ class BalancesView extends React.Component {
 
   refresh = async () => {
     let start = Date.now()
-    this.setState({loading: true})
+    this.setState(() => ({loading: true}))
 
     await this.fetchData()
 
     // wait 0.5 seconds – if we let it go at normal speed, it feels broken.
     let elapsed = Date.now() - start
     await delay(500 - elapsed)
 
-    this.setState({loading: false})
+    this.setState(() => ({loading: false}))
   }
 
   fetchData = async () => {
-    await Promise.all([this.props.updateBalances(true)])
+    await this.props.updateBalances(true)
   }
 
   openSettings = () => {