Removed the DeferChanges stuff for now.

Perspex/Controls/Control.cs

@@ -74,8 +74,6 @@ namespace Perspex.Controls
         public Control()
         {
             this.classes = new Classes();
-            this.classes.BeforeChanged.Subscribe(x => this.BeginDeferChanges());
-            this.classes.AfterChanged.Subscribe(x => this.EndDeferChanges());
 
             this.GetObservable(IsMouseOverProperty).Subscribe(x =>
             {
@@ -143,7 +141,7 @@ namespace Perspex.Controls
         public Classes Classes
         {
             get 
-            { 
+            {
                 return this.classes; 
             }
             
@@ -151,10 +149,8 @@ namespace Perspex.Controls
             {
                 if (this.classes != value)
                 {
-                    this.BeginDeferChanges();
                     this.classes.Clear();
                     this.classes.Add(value);
-                    this.EndDeferChanges();
                 }
             }
         }

Perspex/PerspexObject.cs

@@ -123,39 +123,6 @@ namespace Perspex
             }
         }
 
-        /// <summary>
-        /// Defers property change notifications until <see cref="EndDeferChanges"/> is called.
-        /// </summary>
-        public void BeginDeferChanges()
-        {
-            //foreach (PriorityValue v in this.values.Values)
-            //{
-            //    v.BeginDeferChanges();
-            //}
-
-            //this.Log().Debug(string.Format(
-            //    "Defer style changes on {0} (#{1:x8})",
-            //    this.GetType().Name,
-            //    this.GetHashCode()));
-        }
-
-        /// <summary>
-        /// Ends the defer of property change notifications initiated by a previous call 
-        /// to <see cref="BeginDeferChanges"/>.
-        /// </summary>
-        public void EndDeferChanges()
-        {
-            //foreach (PriorityValue v in this.values.Values)
-            //{
-            //    v.EndDeferChanges();
-            //}
-
-            //this.Log().Debug(string.Format(
-            //    "End defer style changes on {0} (#{1:x8})",
-            //    this.GetType().Name,
-            //    this.GetHashCode()));
-        }
-
         /// <summary>
         /// Gets all <see cref="PerspexProperty"/>s registered on a type.
         /// </summary>