Upgrade example app to 0.62.0-rc.3

Summary:
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1. Remove entire `react-native/ReactNativeExampleFlipper` folder
2. Run `npx react-native init --version 0.62.0-rc.3 ReactNativeExampleFlipper`
4. restore the `package.json` and `TicTacToe` file and import
5. removed `.eslintrc`, `_BUCK` and `build_defz.bzl`, `.watchmenconfig`

Added comments below to highlight the non-generated changes

Reviewed By: passy

Differential Revision: D20221558

fbshipit-source-id: da1c895a2b0e7ce48092e64cdb5ffdb9e4a1a10b

react-native/ReactNativeFlipperExample/ios/ReactNativeFlipperExample/AppDelegate.m

@@ -18,13 +18,29 @@
 #import <FlipperKitReactPlugin/FlipperKitReactPlugin.h>
 #import <FlipperKitUserDefaultsPlugin/FKUserDefaultsPlugin.h>
 #import <SKIOSNetworkPlugin/SKIOSNetworkAdapter.h>
+
+static void InitializeFlipper(UIApplication* application) {
+  FlipperClient* client = [FlipperClient sharedClient];
+  SKDescriptorMapper* layoutDescriptorMapper =
+      [[SKDescriptorMapper alloc] initWithDefaults];
+  [client addPlugin:[[FlipperKitLayoutPlugin alloc]
+                            initWithRootNode:application
+                        withDescriptorMapper:layoutDescriptorMapper]];
+  [client addPlugin:[[FKUserDefaultsPlugin alloc] initWithSuiteName:nil]];
+  [client addPlugin:[FlipperKitReactPlugin new]];
+  [client addPlugin:[[FlipperKitNetworkPlugin alloc]
+                        initWithNetworkAdapter:[SKIOSNetworkAdapter new]]];
+  [client start];
+}
 #endif
 
 @implementation AppDelegate
 
 - (BOOL)application:(UIApplication*)application
     didFinishLaunchingWithOptions:(NSDictionary*)launchOptions {
-  [AppDelegate initializeFlipper:application];
+#if DEBUG
+  InitializeFlipper(application);
+#endif
 
   RCTBridge* bridge = [[RCTBridge alloc] initWithDelegate:self
                                             launchOptions:launchOptions];
@@ -57,20 +73,4 @@
 #endif
 }
 
-+ (void)initializeFlipper:(UIApplication*)application {
-#if DEBUG
-  FlipperClient* client = [FlipperClient sharedClient];
-  SKDescriptorMapper* layoutDescriptorMapper =
-      [[SKDescriptorMapper alloc] initWithDefaults];
-  [client addPlugin:[[FlipperKitLayoutPlugin alloc]
-                            initWithRootNode:application
-                        withDescriptorMapper:layoutDescriptorMapper]];
-  [client addPlugin:[[FKUserDefaultsPlugin alloc] initWithSuiteName:nil]];
-  [client addPlugin:[FlipperKitReactPlugin new]];
-  [client addPlugin:[[FlipperKitNetworkPlugin alloc]
-                        initWithNetworkAdapter:[SKIOSNetworkAdapter new]]];
-  [client start];
-#endif
-}
-
 @end

react-native/ReactNativeFlipperExample/ios/ReactNativeFlipperExample/Images.xcassets/AppIcon.appiconset/Contents.json

@@ -35,4 +35,4 @@
     "version" : 1,
     "author" : "xcode"
   }
-}
+}