diff --git a/src/operations/balance-chart.component.ts b/src/operations/balance-chart.component.ts
index 0796503..8cde252 100644
--- a/src/operations/balance-chart.component.ts
+++ b/src/operations/balance-chart.component.ts
@@ -9,8 +9,6 @@ import {
   OnInit, OnChanges
 } from '@angular/core';
 
-import { Logger } from '@nsalaun/ng-logger';
-
 import { Account } from '../accounts/account';
 import { DailyBalanceService } from '../accounts/dailyBalance.service';
 
@@ -19,12 +17,6 @@ class DateRange {
   maxDate: Date;
 }
 
-class xAxis {
-  balances: Date[];
-  expenses: Date[];
-  revenues: Date[];
-}
-
 @Component({
   selector: 'balance-chart',
   template: '<div></div>'
@@ -38,11 +30,9 @@ export class BalanceChartComponent implements OnInit, OnChanges {
 
   constructor(
     private elementRef: ElementRef,
-    private logger: Logger,
     private dailyBalanceService: DailyBalanceService,
     @Inject('accountIdService') private accountIdService,
   ) {
-    this.logger.log("Constructor BalanceChartComponent")
   }
 
   loadData() {
@@ -70,8 +60,6 @@ export class BalanceChartComponent implements OnInit, OnChanges {
 
       x = this.chart.x();
 
-      this.logger.log("x", x);
-
       var balances = x.balances;
 
       this.onUpdate.emit({