Removed unused members.

Perspex.Controls/Presenters/ScrollContentPresenter.cs

@@ -26,8 +26,6 @@ namespace Perspex.Controls.Presenters
         public static readonly PerspexProperty<bool> CanScrollHorizontallyProperty =
             PerspexProperty.Register<ScrollContentPresenter, bool>("CanScrollHorizontally", true);
 
-        private IDisposable contentBindings;
-
         static ScrollContentPresenter()
         {
             ClipToBoundsProperty.OverrideDefaultValue(typeof(ScrollContentPresenter), true);

Perspex.Controls/ScrollViewer.cs

@@ -49,8 +49,6 @@ namespace Perspex.Controls
         public static readonly PerspexProperty<ScrollBarVisibility> VerticalScrollBarVisibilityProperty =
             PerspexProperty.RegisterAttached<ScrollViewer, Control, ScrollBarVisibility>("VerticalScrollBarVisibility", ScrollBarVisibility.Auto);
 
-        private IDisposable contentBindings;
-
         static ScrollViewer()
         {
             AffectsCoercion(ExtentProperty, OffsetProperty);

Perspex.Diagnostics/ViewModels/LogicalTreeNode.cs

@@ -12,8 +12,6 @@ namespace Perspex.Diagnostics.ViewModels
 
     internal class LogicalTreeNode : TreeNode
     {
-        private string classes;
-
         public LogicalTreeNode(ILogical logical)
             : base((Control)logical)
         {

Perspex.Diagnostics/ViewModels/VisualTreeNode.cs

@@ -11,8 +11,6 @@ namespace Perspex.Diagnostics.ViewModels
 
     internal class VisualTreeNode : TreeNode
     {
-        private string classes;
-
         public VisualTreeNode(IVisual visual)
             : base((Control)visual)
         {