small refactoring

src/panel/graph_panel/data_processor.ts

@@ -2,6 +2,7 @@ import _ from 'lodash';
 import TimeSeries from './vendor/grafana/time_series2';
 import colors from './vendor/grafana/colors';
 
+
 export class DataProcessor {
   constructor(private panel) {}
 

src/panel/graph_panel/graph_ctrl.ts

@@ -18,11 +18,8 @@ import { MetricsPanelCtrl } from 'grafana/app/plugins/sdk';
 import { appEvents } from 'grafana/app/core/core'
 import { BackendSrv } from 'grafana/app/core/services/backend_srv';
 
-
 import _ from 'lodash';
 
-const BACKEND_VARIABLE_NAME = 'HASTIC_SERVER_URL';
-
 
 class GraphCtrl extends MetricsPanelCtrl {
   static template = template;

src/panel/graph_panel/graph_legend.ts

@@ -1,6 +1,5 @@
 import PerfectScrollbar from 'perfect-scrollbar';
 import _ from 'lodash';
-import 'jquery';
 
 
 export class GraphLegend {