Don’t do call async since it’s pretty fast

Author: tanx

src/action/payment.js

@@ -70,8 +70,7 @@ class PaymentAction {
       });
       payment.amount = toAmount(parseSat(request.num_satoshis), settings.unit);
       payment.note = request.description;
-      // asynchronously estimate fee to not block the UI
-      this.estimateLightningFee({
+      await this.estimateLightningFee({
         destination: request.destination,
         satAmt: request.num_satoshis,
       });

test/integration/action/action-integration.spec.js

@@ -349,7 +349,6 @@ describe('Action Integration Tests', function() {
         invoice: store2.invoice.uri,
       });
       expect(isValid, 'to be', true);
-      while (!store1.payment.fee) await nap(100);
       expect(
         parseFloat(store1.payment.fee),
         'to be greater than or equal to',