WebRTC: Remove android_apk recipe

masters/master.tryserver.webrtc/slaves.cfg

 # Copyright (c) 2012 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.
 
 # Pool the builders over all the slave machines, as a WebRTC checkout is only
 # about 1.5 GB including source code and compiled artifacts.
 slaves = [
   # Linux.
   {
     'master': 'WebRTCTryServer',
     'os': 'linux',
     'version': 'precise',
     'bits': '64',
     'builder': [
-      'android',
-      'android_rel',
       'android_clang',
       'android_arm64',
       'android_gn',
       'android_gn_rel',
       'linux',
       'linux_rel',
       'linux_gn',
       'linux_gn_rel',
       'linux_asan',
       'linux_tsan2',
@@ skipping 11 matching lines @@
     ],
     'hostname': 'slave725-c4',
   },
   # Linux bare-metal machines with Android devices.
   {
     'master': 'WebRTCTryServer',
     'os': 'linux',
     'version': 'precise',
     'bits': '64',
     'builder': [
-      'android_apk',
+      'android',
     ],
     'hostname': 'build77-a4',
   },
   {
     'master': 'WebRTCTryServer',
     'os': 'linux',
     'version': 'precise',
     'bits': '64',
     'builder': [
-      'android_apk_rel',
+      'android_rel',
     ],
     'hostname': 'build78-a4',
   },
   # Linux bare-metal machines with audio devices and headsets.
   {
     'master': 'WebRTCTryServer',
     'os': 'linux',
     'version': 'precise',
     'bits': '64',
     'builder': [
@@ skipping 62 matching lines @@
     'master': 'WebRTCTryServer',
     'os': 'win',
     'version': 'win7',
     'bits': '64',
     'builder': [
       'win_baremetal',
     ],
     'hostname': 'build23-a4',
   }
 ]