fix: remove unused files from package (#404)

Author: JustinBeckwith

cloud-tasks/.eslintrc.yml

@@ -1,6 +1,3 @@
 ---
 rules:
   no-console: off
-  node/no-missing-require: off
-parserOptions:
-  ecmaVersion: 8

cloud-tasks/package.json

@@ -5,12 +5,14 @@
   "author": "Google Inc.",
   "private": true,
   "engines": {
-    "node": ">=8"
+    "node": ">=10"
   },
+  "files": [
+    "*.js"
+  ],
   "scripts": {
     "test": "mocha",
-    "start": "node server.js",
-    "lint": "eslint '**/*.js'"
+    "start": "node server.js"
   },
   "dependencies": {
     "@google-cloud/tasks": "^2.0.0",