Remove karlklose@ from kernel watchlist

Change-Id: Id21970c447355fa84918c24fa6ede1c22837b003
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/112394
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>

WATCHLISTS

@@ -69,8 +69,7 @@
     'dart2js': [ 'johnniwinther@google.com', 'sigmund@google.com',
                  'sra@google.com', 'fishythefish@google.com' ],
     'front_end': [ 'dart-fe-team+reviews@google.com' ],
-    'kernel': [ 'karlklose@google.com', 'jensj@google.com',
-                'alexmarkov@google.com' ],
+    'kernel': [ 'jensj@google.com', 'alexmarkov@google.com' ],
     'messages_review': [ 'dart-uxr+reviews@google.com' ],
     'observatory': [ 'bkonyi@google.com' ],
     'package_vm': [ 'alexmarkov@google.com' ],