fix(controller): revert release.check_image_access for now

rootfs/api/models/app.py

@@ -520,9 +520,6 @@ def deploy(self, release, force_deploy=False, rollback_on_failure=True):  # noqa
         image = settings.SLUGRUNNER_IMAGE if release.build.type == 'buildpack' else release.image
 
         try:
-            # check access to the image, so users can't exploit the k8s image cache
-            # to gain access to other users' images
-            release.check_image_access()
             # create the application config in k8s (secret in this case) for all deploy objects
             self.set_application_config(release)
             # only buildpack apps need access to object storage