devtools/ci: temporarily disable screentests

To speed up GAR 4 code review process, we'll temporarily disable
the screentests.

Change-Id: Ide96e8544cbf56db4dee7f4f2924f76a60af5f6c
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/522736
kokoro-CI: kokoro <noreply+kokoro@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Jamal Carvalho <jamal@golang.org>
Auto-Submit: Jamal Carvalho <jamal@golang.org>
diff --git a/devtools/ci/ci.sh b/devtools/ci/ci.sh
index 5169af2..d323b8d 100755
--- a/devtools/ci/ci.sh
+++ b/devtools/ci/ci.sh
@@ -102,8 +102,8 @@
 echo "----------------------------------------"
 echo "Running screentest"
 echo "----------------------------------------"
-./tests/screentest/run.sh --rm --seeddb ci --concurrency 1
-print_duration_and_reset
+# ./tests/screentest/run.sh --rm --seeddb ci --concurrency 1
+# print_duration_and_reset
 
 echo "----------------------------------------"
 echo "Running search tests"