Backed out changeset afd22bdea63c (bug 1285173) on request of developer for timeouts in browser_net_statistics-03.js on Linux x64 opt+pgo. r=backout

devtools/client/netmonitor/netmonitor-view.js

@@ -1201,7 +1201,7 @@ function whenDataAvailable(dataStore, mandatoryFields) {
   let deferred = promise.defer();
 
   let interval = setInterval(() => {
-    if (dataStore.length > 0 && dataStore.every(item => {
+    if (dataStore.every(item => {
       return mandatoryFields.every(field => field in item);
     })) {
       clearInterval(interval);