Ionic - How to remove header title?

How to remove header title in ionic? I want to remove login title inside my header.

my code

<ion-view  hide-back-button="true">
  <ion-nav-buttons side="left">
    <button menu-toggle="left" class="button button-icon icon ion-navicon"></button>
  <h1 class="title"><img class="title-image" src="img/header_logo.png" /></h1>
   </ion-nav-buttons>
  <ion-content class="has-header">
    <ion-list>
      <ion-item ng-repeat="playlist in playlists" href="#/app/home/{{playlist.id}}">
        {{playlist.title}}
      </ion-item>
    </ion-list>
  </ion-content>
</ion-view>

Current issue