Don't load deprecation string from gstatic.

Since this string is now fixed, there's no advantage to loading it from
gstatic, so let's just hard-code it to avoid the network delay (and
potential for showing an empty message box if the load fails).

Note that this also disables telemetry for clicks on the website link.
I don't think we've ever found that very useful so I'm okay with losing
it, but LMK if you disagree.

Change-Id: I8d066970b9b0a96c467b50e90bdfe87be272a5e5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1677244
Reviewed-by: Jamie Walch <jamiewalch@chromium.org>
Reviewed-by: Joe Downing <joedow@chromium.org>
Commit-Queue: Jamie Walch <jamiewalch@chromium.org>
Commit-Queue: Joe Downing <joedow@chromium.org>
Auto-Submit: Jamie Walch <jamiewalch@chromium.org>
Cr-Commit-Position: refs/heads/master@{#672256}
6 files changed