WebRTC: Move SyzyASan to FYI due to bug.

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',
@@ skipping 116 matching lines @@
     'master': 'WebRTCTryServer',
     'os': 'win',
     'version': 'win7',
     'bits': '64',
     'builder': [
       'win',
       'win_rel',
       'win_x64_rel',
       'win_x64_gn',
       'win_x64_gn_rel',
-      'win_asan',
     ],
     'hostname': 'vm%d-m4' % i,
   } for i in range(207, 209) + [212]
 ] + [
   {
     'master': 'WebRTCTryServer',
     'os': 'win',
     'version': 'win7',
     'bits': '64',
     'builder': [
       'win_drmemory_light',
       'win_drmemory_full',
     ],
     'hostname': 'vm234-m4',
   },
   # Windows bare-metal machines with audio devices and headsets.
   {
     'master': 'WebRTCTryServer',
     'os': 'win',
     'version': 'win7',
     'bits': '64',
     'builder': [
       'win_baremetal',
     ],
     'hostname': 'build23-a4',
   }
 ]