Change HTTPStatus to use net/http instead of curl
Change HTTPStatus to use net/http instead of curl

Error messages are currently not being printed and this is overall simpler

PiperOrigin-RevId: 314966278
Change-Id: Ifd1d35290d9d535a7e01fe3a5b7989bd5f2cd97d

GoogleCloudPlatform/buildpacks,GoogleCloudPlatform/buildpacks,GoogleCloudPlatform/buildpacks,GoogleCloudPlatform/buildpacks