ime: Clean up test only shared library.

The shared library is no longer needed after: https://crrev.com/c/2206855

Bug: 1019541
Change-Id: Ia57e89c5e8fe2e1b05e040c05438daea91aa00e9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2224478
Commit-Queue: Leo Zhang <googleo@chromium.org>
Reviewed-by: Leo Zhang <googleo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#779793}

chromeos/services/ime/public/cpp/shared_lib/BUILD.gn

@@ -5,12 +5,3 @@
 source_set("interfaces") {
   sources = [ "interfaces.h" ]
 }
-
-shared_library("fake_shared_lib") {
-  testonly = true
-  sources = [ "fake_shared_lib.cc" ]
-  deps = [ "//chromeos/services/ime/public/cpp/shared_lib:interfaces" ]
-
-  # This is the name expected by DecoderEngine.
-  output_name = "imedecoder"
-}

chromeos/services/ime/public/cpp/shared_lib/fake_shared_lib.cc

-// Copyright 2020 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chromeos/services/ime/public/cpp/shared_lib/interfaces.h"
-
-extern "C" {
-
-// This is the exposed function from shared library, used by IME service to
-// acquire the instance of ImeEngineMainEntry.
-__attribute__((visibility("default"))) chromeos::ime::ImeEngineMainEntry*
-CreateImeMainEntry(chromeos::ime::ImeCrosPlatform*) {
-  return nullptr;
-}
-}