GYP: Remove targets inside include_tests==1 that are converted to GN.

webrtc/api/peerconnection_unittests_apk.isolate

-# Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
-#
-# Use of this source code is governed by a BSD-style license
-# that can be found in the LICENSE file in the root of the source
-# tree. An additional intellectual property rights grant can be found
-# in the file PATENTS.  All contributing project authors may
-# be found in the AUTHORS file in the root of the source tree.
-{
-  'includes': [
-    '../../build/android/android.isolate',
-    'peerconnection_unittests.isolate',
-  ],
-  'variables': {
-    'command': [
-      '<(PRODUCT_DIR)/bin/run_peerconnection_unittests',
-      '--logcat-output-dir', '${ISOLATED_OUTDIR}/logcats',
-    ],
-    'files': [
-      '../../build/config/',
-      '../../third_party/instrumented_libraries/instrumented_libraries.isolate',
-      '<(PRODUCT_DIR)/peerconnection_unittests_apk/',
-      '<(PRODUCT_DIR)/bin/run_peerconnection_unittests',
-      'peerconnection_unittests.isolate',
-    ]
-  }
-}