Removing usages of a deleted flag.
Deleted in https://chromium.googlesource.com/chromium/src.git/+/ba49d00fddeb39c0816090dad7d359df0dce9a1a
Bug: 74848

Change-Id: Ia3d5c796ad34857f4e84fdb3a6f53fce3f00d63b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1574829
Reviewed-by: Egor Pasko <pasko@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Anthony Steinhauser <asteinhauser@google.com>
Cr-Original-Commit-Position: refs/heads/master@{#652638}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 7a7d567331594a11a9e3e2036256b2e3740b2bd6
diff --git a/native_client/tools/browser_tester/browsertester/browserlauncher.py b/native_client/tools/browser_tester/browsertester/browserlauncher.py
index 497cb94..a990ca9 100755
--- a/native_client/tools/browser_tester/browsertester/browserlauncher.py
+++ b/native_client/tools/browser_tester/browsertester/browserlauncher.py
@@ -279,7 +279,6 @@
             '--no-first-run',
             '--no-default-browser-check',
             '--log-level=1',
-            '--safebrowsing-disable-auto-update',
             '--disable-default-apps',
             # Suppress metrics reporting.  This prevents misconfigured bots,
             # people testing at their desktop, etc from poisoning the UMA data.