Disable CircleCI on Kokoro-backed tests

Author: Ace Nassri

circle.yml

@@ -35,11 +35,9 @@ dependencies:
     - yarn install
     - yarn run lint
     - samples test install -l=functions/background
-    - samples test install -l=functions/datastore
     - samples test install -l=functions/errorreporting
     - samples test install -l=functions/gcs
     - samples test install -l=functions/helloworld
-    - samples test install -l=functions/http
     - samples test install -l=functions/imagemagick
     - samples test install -l=functions/log
     - samples test install -l=functions/ocr/app