remove unused constant

bubble-server/src/main/java/bubble/service/packer/PackerJob.java

@@ -47,7 +47,6 @@ import static org.cobbzilla.util.time.TimeUtil.DATE_FORMAT_YYYYMMDDHHMMSS;
 @Slf4j
 public class PackerJob implements Callable<List<PackerImage>> {
 
-    public static final AnsibleInstallType[] PACKER_TYPES = {AnsibleInstallType.sage, AnsibleInstallType.node};
     public static final String PACKER_TEMPLATE = PACKER_DIR+"/packer.json.hbs";
     public static final String PACKER_IMAGE_NAME_VAR = "packerImageName";
     public static final String PACKER_IMAGE_PREFIX = "packer_bubble_";