Remove mtklein from housekeeper message

Respect.

Change-Id: I69fd0d7e3259082658e1eacbd05259bd4cf34cb9
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/419837
Auto-Submit: Adlai Holler <adlai@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
diff --git a/PRESUBMIT.py b/PRESUBMIT.py
index 75c4b70..c7a910c 100644
--- a/PRESUBMIT.py
+++ b/PRESUBMIT.py
@@ -29,7 +29,6 @@
     'djsollen@google.com',
     'hcm@chromium.org',
     'hcm@google.com',
-    'mtklein@google.com',
     'reed@chromium.org',
     'reed@google.com',
 )