Remove unnecessary method overload.

Duplicati/Library/Utility/Utility.cs

@@ -141,7 +141,7 @@ namespace Duplicati.Library.Utility
         /// <returns>A list of the full paths</returns>
         public static IEnumerable<string> EnumerateFolders(string basepath)
         {
-            return EnumerateFolders(basepath, null);
+            return EnumerateFileSystemEntries(basepath).Where(x => x.EndsWith(Util.DirectorySeparatorString, StringComparison.Ordinal));
         }
 
         /// <summary>
@@ -167,18 +167,6 @@ namespace Duplicati.Library.Utility
             return EnumerateFileSystemEntries(basepath, filter).Where(x => !x.EndsWith(Util.DirectorySeparatorString, StringComparison.Ordinal));
         }
 
-        /// <summary>
-        /// Returns a list of folder names found in the given folder.
-        /// The search is recursive.
-        /// </summary>
-        /// <param name="basepath">The folder to look in</param>
-        /// <param name="filter">The filter to apply.</param>
-        /// <returns>A list of the full paths</returns>
-        public static IEnumerable<string> EnumerateFolders(string basepath, IFilter filter)
-        {
-            return EnumerateFileSystemEntries(basepath, filter).Where(x => x.EndsWith(Util.DirectorySeparatorString, StringComparison.Ordinal));
-        }
-
         /// <summary>
         /// Returns a list of all files and subfolders found in the given folder.
         /// The search is recursive.