_content: redirect /doc/tos to /tos

Unclear why we have two; drop to one.

Change-Id: I9a8a75deb21a669f821e596922e5fc9e6777ba80
Reviewed-on: https://go-review.googlesource.com/c/website/+/548117
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
diff --git a/_content/doc/tos.html b/_content/doc/tos.html
index f26d050..f9b58f7 100644
--- a/_content/doc/tos.html
+++ b/_content/doc/tos.html
@@ -1,11 +1,3 @@
 <!--{
-	"Title": "Terms of service"
+	"Redirect": "/tos"
 }-->
-
-<p>
-The Go website (the "Website") is hosted by Google.
-By using and/or visiting the Website, you consent to be bound by Google's general
-<a href="https://www.google.com/intl/en/policies/terms/">Terms of Service</a>
-and Google's general
-<a href="https://www.google.com/intl/en/privacy/privacy-policy.html">Privacy Policy</a>.
-</p>