Remove the Path class from dart:io

sdk/lib/io/directory.dart

Index: sdk/lib/io/directory.dart
diff --git a/sdk/lib/io/directory.dart b/sdk/lib/io/directory.dart
index 7bae57884757c1a05224ee7469c6bbf484fda691..57b656862726c8f5a60e07d78041a67e15d7e5f0 100644
--- a/sdk/lib/io/directory.dart
+++ b/sdk/lib/io/directory.dart
@@ -16,14 +16,6 @@ abstract class Directory implements FileSystemEntity {
   factory Directory(String path) => new _Directory(path);
 
   /**
-   * Creates a directory object from a Path object. The path is either
-   * an absolute path, or it is a relative path which is interpreted
-   * relative to the directory in which the Dart VM was started.
-   */
-  @deprecated
-  factory Directory.fromPath(Path path) => new _Directory.fromPath(path);
-
-  /**
    * Creates a directory object pointing to the current working
    * directory.
    */