Remove stale build message.

Closes expo#38

Author: anp

react-native-scripts/src/bin/react-native-scripts.js

@@ -6,7 +6,6 @@ const script = process.argv[2];
 const args = process.argv.slice(3);
 
 const validCommands = [
-  'build',
   'eject',
   'android',
   'ios',

react-native-scripts/src/scripts/build.js

@@ -158,8 +158,7 @@ If you have a .babelrc in your project, make sure to change the preset to \`reac
     pkgJson.scripts.ios = 'react-native run-ios';
     pkgJson.scripts.android = 'react-native run-android';
 
-    // these are no longer relevant to an ejected project (maybe build is?)
-    delete pkgJson.scripts.build;
+    // no longer relevant to an ejected project (maybe build is?)
     delete pkgJson.scripts.eject;
 
     console.log(chalk.blue(`Updating your ${npmOrYarn} scripts in package.json...`));

react-native-scripts/src/scripts/eject.js

@@ -35,7 +35,6 @@ module.exports = async (appPath: string, appName: string, verbose: boolean) => {
   appPackage.main = './node_modules/react-native-scripts/build/bin/crna-entry.js';
   appPackage.scripts = {
     start: "react-native-scripts start",
-    build: "react-native-scripts build",
     eject: "react-native-scripts eject",
     android: "react-native-scripts android",
     ios: "react-native-scripts ios",