Remove kkania from various OWNERS and watchlists.

WATCHLISTS

 # 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.
 
 # Watchlist Rules
 # Refer: http://dev.chromium.org/developers/contributing-code/watchlists
 
 # IMPORTANT: The regular expression filepath is tested against each path using
 # re.search, so it is not usually necessary to add .*.
 
@@ skipping 671 matching lines @@
     'browser_compositor': ['vollick@chromium.org',
                            'piman+watch@chromium.org'],
     'browser_resources': ['arv+watch@chromium.org'],
     'browsing_data': ['markusheintz@chromium.org'],
     'bubble': ['alicet@chromium.org', 'msw+watch@chromium.org'],
     'cast': ['miu+watch@chromium.org'],
     'cc': ['cc-bugs@chromium.org'],
     'chrome_frame': ['amit@chromium.org', 'grt+watch@chromium.org',
                      'robertshield@chromium.org'],
     'chrome_views': ['tfarina@chromium.org'],
-    'chromedriver': ['kkania@chromium.org', 'frankf@chromium.org'],
+    'chromedriver': ['chrisgao@chromium.org', 'frankf@chromium.org'],
     'chromeos' : ['oshima+watch@chromium.org',
                   'stevenjb+watch@chromium.org'],
     'chromeos_attestation' : ['dkrahn+watch@chromium.org'],
     'chromeos_calculator' : ['dharcourt@chromium.org'],
     'chromeos_net' : ['stevenjb+watch@chromium.org'],
     'chromeos_power' : ['derat+watch@chromium.org'],
     'chromeos_webui': ['nkostylev+watch@chromium.org'],
     'clang_update': ['ukai+watch@chromium.org',
                      'dmikurube+clang@chromium.org',
                      'eugenis+clang@chromium.org',
@@ skipping 147 matching lines @@
     'webrtc_media': ['fischman+watch@chromium.org',
                      'wjia+watch@chromium.org',
                      'mcasas+watch@chromium.org'],
     'website_settings': ['markusheintz@chromium.org'],
     'worker': ['jam@chromium.org'],
     'x11': ['derat+watch@chromium.org',
             'sadrul@chromium.org',
             'yusukes+watch@chromium.org'],
   },
 }