Revert "Access to imports in the VM's runtime mirrors. Extend test coverage of the source mirrors."

sdk/lib/mirrors/mirrors.dart

Index: sdk/lib/mirrors/mirrors.dart
diff --git a/sdk/lib/mirrors/mirrors.dart b/sdk/lib/mirrors/mirrors.dart
index 97c6d21ce7515f561e6a6f22cbcbf6c9a0576969..0c2993124c743f8291a3fa864f857017f559f441 100644
--- a/sdk/lib/mirrors/mirrors.dart
+++ b/sdk/lib/mirrors/mirrors.dart
@@ -607,51 +607,6 @@ abstract class LibraryMirror implements DeclarationMirror, ObjectMirror {
    * [ArgumentError] is thrown.
    */
   Function operator [](Symbol name);
-
-  /**
-   * Returns a list of the imports and exports in this library;
-   */
-  List<LibraryDependencyMirror> get libraryDependencies;
-}
-
-/// A mirror on an import or export declaration.
-abstract class LibraryDependencyMirror {
-  /// Is `true` if this dependency is an import.
-  bool get isImport;
-
-  /// Is `true` if this dependency is an export.
-  bool get isExport;
-
-  /// Returns the library mirror of the library that imports or exports the
-  /// [targetLibrary].
-  LibraryMirror get sourceLibrary;
-
-  /// Returns the library mirror of the library that is imported or exported.
-  LibraryMirror get targetLibrary;
-
-  /// Returns the prefix if this is a prefixed import and `null` otherwise.
-  Symbol get prefix;
-
-  /// Returns the list of show/hide combinators on the import/export
-  /// declaration.
-  List<CombinatorMirror> get combinators;
-
-  /// Returns the source location for this import/export declaration.
-  SourceLocation get location;
-
-  List<InstanceMirror> get metadata;
-}
-
-/// A mirror on a show/hide combinator declared on a library dependency.
-abstract class CombinatorMirror {
-  /// The list of identifiers on the combinator.
-  List<Symbol> get identifiers;
-
-  /// Is `true` if this is a 'show' combinator.
-  bool get isShow;
-
-  /// Is `true` if this is a 'hide' combinator.
-  bool get isHide;
 }
 
 /**