Don't default to new arch when building iOS/macOS

Author: Shawn Dempsey

example/ios/Podfile

@@ -5,9 +5,9 @@ workspace 'AsyncStorageExample.xcworkspace'
 use_flipper! false
 
 options = {
-  :fabric_enabled => true,
+  :fabric_enabled => false,
   :hermes_enabled => false,
-  :turbomodule_enabled => true,
+  :turbomodule_enabled => false,
 }
 
 use_test_app! options do |target|

example/macos/Podfile

@@ -3,9 +3,9 @@ require_relative '../../node_modules/react-native-test-app/macos/test_app.rb'
 workspace 'AsyncStorageExample.xcworkspace'
 
 options = {
-  :fabric_enabled => true,
+  :fabric_enabled => false,
   :hermes_enabled => false,
-  :turbomodule_enabled => true,
+  :turbomodule_enabled => false,
 }
 
 use_test_app! do |target|