Get rid of support for string interpolation in #import strings.

include/dart_api.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef INCLUDE_DART_API_H_
 #define INCLUDE_DART_API_H_
 
 /** \mainpage Dart Embedding API Reference
  *
  * Dart is a class-based programming language for creating structured
@@ skipping 2452 matching lines @@
  *   encountered while loading libraries or scripts in the isolate.
  *
  * \return If no error occurs, the handler is set for the isolate.
  *   Otherwise an error handle is returned.
  *
  * TODO(turnidge): Document.
  */
 DART_EXPORT Dart_Handle Dart_SetLibraryTagHandler(
     Dart_LibraryTagHandler handler);
 
-/**
- * Sets the import map for the current isolate.
- *
- * The import map is a List of Strings, representing a set of (name,
- * value) pairs. The import map is used during the resolution of #
- * directives in source files to implement string interpolation.
- *
- * For example, if a source file imports:
- *
- *   #import('${foo}/dart.html');
- *
- * And the import map is:
- *
- *   [ "foo", "/home/user" ]
- *
- * Then the import would resolve to:
- *
- *   #import('/home/user/dart.html');
- *
- * \param import_map A List of Strings interpreted as a String to
- *   String mapping.
- * \return If no error occurs, the import map is set for the isolate.
- *   Otherwise an error handle is returned.
- */
-DART_EXPORT Dart_Handle Dart_SetImportMap(Dart_Handle import_map);
 
 /**
  * Loads the root script for the current isolate.
  *
  * TODO(turnidge): Document.
  */
 DART_EXPORT Dart_Handle Dart_LoadScript(Dart_Handle url,
                                         Dart_Handle source);
 
 /**
@@ skipping 122 matching lines @@
 
 typedef void (*Dart_FileWriterFunction)(const char* buffer, int64_t num_bytes);
 
 // Support for generating symbol maps for use by the Linux perf tool.
 DART_EXPORT void Dart_InitPerfEventsSupport(Dart_FileWriterFunction function);
 
 // Support for generating flow graph compiler debugging output into a file.
 DART_EXPORT void Dart_InitFlowGraphPrinting(Dart_FileWriterFunction function);
 
 #endif  // INCLUDE_DART_API_H_