Remove unused IMintedApiCallback

web_apks/minting_example/BUILD.gn

 # Copyright 2015 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.
 
 import("//build/config/android/rules.gni")
 
 declare_args() {
   # The origin URL of minted apks, for example: "foo.com"
   manifest_package_minting_origin = "template"
 
@@ skipping 85 matching lines @@
     "$minting_common_dir/org/chromium/minting/lib/common/WebAPKConstants.java",
     "$minting_common_dir/org/chromium/minting/lib/common/WebAPKUtils.java",
   ]
 }
 
 android_aidl("minting_service_aidl") {
   import_include = "$minting_runtime_library_dir/src/org/chromium/minting/libs/runtime_library"
   interface_file = "$minting_runtime_library_dir/src/org/chromium/minting/libs/runtime_library/common.aidl"
   sources = [
     "$minting_runtime_library_dir/src/org/chromium/minting/libs/runtime_library/IMintedApi.aidl",
-    "$minting_runtime_library_dir/src/org/chromium/minting/libs/runtime_library/IMintedApiCallback.aidl",
   ]
 }
 
 android_library("minting_runtime_library") {
   dex_path = "$target_gen_dir/$runtime_dex_asset_name"
   java_files = [ "$minting_runtime_library_dir/src/org/chromium/minting/libs/runtime_library/MintedServiceImpl.java" ]
   chromium_code = false
   srcjar_deps = [ ":minting_service_aidl" ]
 }
 
@@ skipping 50 matching lines @@
 }
 
 junit_binary("minting_runtime_library_junit_tests") {
   java_files = [ "$minting_runtime_library_junit_dir/src/org/chromium/minting/libs/runtime_library/MintedServiceImplTest.java" ]
   deps = [
     ":minting_runtime_library",
     "//base:base_java",
     "//base:base_junit_test_support",
   ]
 }