Only allow names that are shaped like the spec's names

lib/tasks/verify-package-json.js

@@ -5,7 +5,6 @@ const fs = require('fs');
 const path = require('path');
 const denodeify = require('util').promisify;
 const isCI = require('is-ci');
-const validateNpmPackageName = require('validate-npm-package-name');
 const semver = require('semver');
 
 const fileExists = file => denodeify(fs.open)(file, 'r').then(() => true).catch(() => false);
@@ -97,20 +96,13 @@ function validJavaScriptEntryPoint(manifest, workingDirectory) {
  * @returns {Boolean} Whether the name parameter is valid according to origami package.json specification.
  */
 function validName(name) {
-	if (typeof name === 'string' && name.startsWith('@financial-times/') && isValidNpmName(name)) {
-		return true;
-	} else {
+	if (typeof name !== 'string') {
 		return false;
 	}
-}
-
-/**
- * Checks an npm component name conforms to the npmjs package.json specification.
- * @param {String} name An npm component name.
- * @returns {Boolean} Whether the name parameter is valid according to npmjs package.json specification.
- */
-function isValidNpmName(name) {
-	return validateNpmPackageName(name).validForNewPackages;
+	if (!name.match(/^@financial-times\/[A-Za-z][A-Za-z0-9-]*$/)) {
+		return false;
+	}
+	return true;
 }
 
 async function packageJson(config) {