Remove default build number generation

See https://github.com/meteor/meteor/pull/4048.

History.md

@@ -207,9 +207,9 @@ message for more details.
 
 * Allow adding local Cordova plugins with `file://` URIs. #4229
 
-* Automatically set default values for `'android-versionCode'` and
-  `'ios-CFBundleVersion'` options of Cordova project. (The feature is helpful to
-  use with tooling such as TestFlight.) #4048
+* Allow specifying a `buildNumber` in `App.info`, which is used to set the
+  `android-versionCode` and `ios-CFBundleVersion` in the `config.xml` of the
+  Cordova project. #4048
 
 ### Other bug fixes and improvements
 

tools/cordova/builder.js

@@ -88,11 +88,10 @@ export class CordovaBuilder {
   }
 
   initalizeDefaults() {
-    const defaultBuildNumber = (Date.now() % 1000000).toString();
     this.metadata = {
       id: 'com.id' + this.projectContext.appIdentifier,
       version: '0.0.1',
-      buildNumber: defaultBuildNumber,
+      buildNumber: undefined,
       name: this.cordovaProject.appName,
       description: 'New Meteor Mobile App',
       author: 'A Meteor Developer',