Update Auth samples to sync with internal changes (#2056)

Author: paulb777

Example/Auth/ApiTests/FirebaseAuthApiTests.m

@@ -23,8 +23,6 @@
 
 #ifdef NO_NETWORK
 #import "ITUIOSTestUtil.h"
-#import "ioReplayer/IORManager.h"
-#import "ioReplayer/IORTestCase.h"
 #endif
 
 #import <GTMSessionFetcher/GTMSessionFetcher.h>
@@ -93,11 +91,8 @@
 #define SKIP_IF_ON_MOBILE_HARNESS
 #endif
 
-#ifdef NO_NETWORK
-@interface ApiTests : IORTestCase
-#else
 @interface ApiTests : XCTestCase
-#endif
+
 @end
 
 @implementation ApiTests

Example/Auth/EarlGreyTests/FirebaseAuthEarlGreyTests.m

@@ -21,10 +21,6 @@
 #import <FirebaseCore/FIRApp.h>
 #import "FirebaseAuth.h"
 
-#ifdef NO_NETWORK
-#import "ioReplayer/IORTestCase.h"
-#endif
-
 /** The url for obtaining a valid custom token string used to test BYOAuth. */
 static NSString *const kCustomTokenUrl = @"https://fb-sa-1211.appspot.com/token";
 
@@ -38,11 +34,7 @@
 
 static NSTimeInterval const kWaitForElementTimeOut = 5;
 
-#ifdef NO_NETWORK
-@interface BasicUITest : IORTestCase
-#else
 @interface BasicUITest :XCTestCase
-#endif
 @end
 
 /** Convenience function for EarlGrey tests. */