Remove query empty from model

public/app/core/logs_model.ts

@@ -62,7 +62,6 @@ export interface LogsModel {
   meta?: LogsMetaItem[];
   rows: LogRow[];
   series?: TimeSeries[];
-  queryEmpty?: boolean;
 }
 
 export interface LogsStream {

public/app/core/utils/explore.ts

@@ -162,7 +162,6 @@ export function calculateResultsFromQueryTransactions(
           graphInterval
         )
       : undefined,
-    queryEmpty: queryTransactions.filter(qt => qt.resultType === 'Logs' && qt.done).every(qt => qt.result.length === 0),
   };
 
   return {