Remove unreliable repository (#7176)

app.config.js

···
         './plugins/withAndroidManifestFCMIconPlugin.js',
         './plugins/withAndroidStylesAccentColorPlugin.js',
         './plugins/withAndroidSplashScreenStatusBarTranslucentPlugin.js',
+        './plugins/withAndroidNoJitpackPlugin.js',
         './plugins/shareExtension/withShareExtensions.js',
         './plugins/notificationsExtension/withNotificationsExtension.js',
         './plugins/withAppDelegateReferrer.js',

plugins/withAndroidNoJitpackPlugin.js

···
+const {withProjectBuildGradle} = require('@expo/config-plugins')
+
+const jitpackRepository = "maven { url 'https://www.jitpack.io' }"
+
+module.exports = function withAndroidNoJitpackPlugin(config) {
+  return withProjectBuildGradle(config, config => {
+    if (!config.modResults.contents.includes(jitpackRepository)) {
+      throw Error(
+        'Expected to find the jitpack string in the config. ' +
+          'You MUST verify whether it was actually removed upstream, ' +
+          'or if the format has changed and this plugin no longer recognizes it.',
+      )
+    }
+    config.modResults.contents = config.modResults.contents.replaceAll(
+      jitpackRepository,
+      '',
+    )
+    return config
+  })
+}