Remove service-compiler related code.

pkg/immi_samples/lib/sliding_window.immi

-// Copyright (c) 2015, the Dartino 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.md file.
-
-// Reusable sliding-window view of a list of nodes.  The window is represented
-// as a cyclic buffer so that sliding by N, where N is less than the buffer
-// length, can be implemented as shifting the buffer offset by N and populating
-// N items.
-node SlidingWindow {
-  // Cyclic buffer for the sliding window of nodes.
-  List<Node> window;
-
-  // Offset of the window start from the original list.
-  int32 startOffset;
-
-  // Offset of the first sliding-window item in the window.
-  uint16 windowOffset;
-
-  // Number of items known to be in the list.
-  int32 minimumCount;
-
-  // Number of items in the list. A negative value denotes an unknown size.
-  int32 maximumCount;
-
-  // Event to update the sliding-window display range.
-  void display(int32 start, int32 end);
-
-  // Event to toggle an item in the window.
-  void toggle(int32 index);
-}