code: function() {
  		this.element.off( 'mousedown touchstart', this._onTabClickFn );
  		this.closeElement.off( 'click touchstart', this._onCloseClickFn );
  		if( this._dragListener ) {
  			this.contentItem.off( 'destroy', this._dragListener.destroy, this._dragListener );
  			this._dragListener.off( 'dragStart', this._onDragStart );
  			this._dragListener = null;
  		}
  		this.element.remove();
  	}
docs: Destroys the tab
  
  @private
  @returns {void}