FileDialog code cleanup

Terminal.Gui/Views/FileDialog.cs

@@ -610,7 +610,7 @@ public class FileDialog : Dialog
         ApplySort ();
     }
 
-    private new void Accept (IEnumerable<FileSystemInfoStats> toMultiAccept)
+    private void Accept (IEnumerable<FileSystemInfoStats> toMultiAccept)
     {
         if (!AllowsMultipleSelection)
         {
@@ -629,7 +629,7 @@ public class FileDialog : Dialog
         FinishAccept ();
     }
 
-    private new void Accept (IFileInfo f)
+    private void Accept (IFileInfo f)
     {
         if (!IsCompatibleWithOpenMode (f.FullName, out string reason))
         {
@@ -649,7 +649,7 @@ public class FileDialog : Dialog
         FinishAccept ();
     }
 
-    private new void Accept (bool allowMulti)
+    private void Accept (bool allowMulti)
     {
         if (allowMulti && TryAcceptMulti ())
         {