Remove szager from blink layout reviews

TBR=chrishtr@chromium.org

Change-Id: I0e2d68aecb6b20ecec5ec4a88e41b57a69b06341
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1982684Reviewed-by: Stefan Zager <szager@chromium.org>
Cr-Commit-Position: refs/heads/master@{#727496}

WATCHLISTS

@@ -2193,7 +2193,6 @@
     'blink_layers': ['blink-layers+watch@chromium.org'],
     'blink_layout': ['blink-reviews-layout@chromium.org',
                      'eae+blinkwatch@chromium.org',
-                     'szager+layoutwatch@chromium.org',
                      'zoltan@webkit.org'],
     'blink_layout_ng': ['cbiesinger@chromium.org',
                         'glebl+reviews@chromium.org',