Removed unneeded HasBaseTypes() and HasDerivedTypes() methods.

src/Main/Base/Project/Dom/ClassBrowser/BaseTypesTreeNode.cs

@@ -52,12 +52,6 @@ namespace ICSharpCode.SharpDevelop.Dom.ClassBrowser
 			get { return false; }
 		}
 		
-		public bool HasBaseTypes()
-		{
-			ITypeDefinition currentTypeDef = definition.Resolve();
-			return (currentTypeDef != null) && currentTypeDef.DirectBaseTypes.Any();
-		}
-		
 		void UpdateBaseTypes()
 		{
 			baseTypes.Clear();

src/Main/Base/Project/Dom/ClassBrowser/DerivedTypesTreeNode.cs

@@ -54,13 +54,6 @@ namespace ICSharpCode.SharpDevelop.Dom.ClassBrowser
 			get { return false; }
 		}
 		
-		public bool HasDerivedTypes()
-		{
-			ITypeDefinition currentTypeDef = definition.Resolve();
-			// TODO Searching for derived types every time just to get children count might be too expensive
-			return (currentTypeDef != null) && (FindReferenceService.FindDerivedTypes(currentTypeDef, true).Count > 0);
-		}
-		
 		void UpdateDerivedTypes()
 		{
 			derivedTypes.Clear();