deploy: remove no-cache directive

The "no-cache" directive slows down requests, so remove it for now.

Change-Id: Iaa0aea9bd4317a0ecbbfdb2bd1c8abf90026e5fb
Reviewed-on: https://go-review.googlesource.com/c/vulndb/+/476655
Reviewed-by: Tatiana Bradley <tatianabradley@google.com>
Auto-Submit: Tatiana Bradley <tatianabradley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Tatiana Bradley <tatianabradley@google.com>
Reviewed-by: Julie Qiu <julieqiu@google.com>

deploy/gcp-deploy.sh

@@ -9,10 +9,7 @@ set -e
 gsutil -q -m cp -r /workspace/legacydb/* gs://go-vulndb
 
 # Deploy v1 database files.
-# The "no-cache" directive indicates that browsers may cache
-# the data but must first check that is is fresh by contacting the
-# origin server.
-gsutil -m -h "Cache-Control:no-cache" cp -r /workspace/db/* gs://go-vulndb
+gsutil -m cp -r /workspace/db/* gs://go-vulndb
 
 # Deploy web files.
 # index.html is deployed as-is to avoid a name conflict with