fixes large titles (#2775)

ios/RCCViewController.m

@@ -364,12 +364,6 @@ const NSInteger TRANSPARENT_NAVBAR_TAG = 78264803;
   
   NSMutableDictionary *titleTextAttributes = [RCTHelpers textAttributesFromDictionary:self.navigatorStyle withPrefix:@"navBarText" baseFont:[UIFont boldSystemFontOfSize:17]];
   [self.navigationController.navigationBar setTitleTextAttributes:titleTextAttributes];
-
-  if (self.navigationItem.titleView && [self.navigationItem.titleView isKindOfClass:[RCCTitleView class]]) {
-    RCCTitleView *titleView = (RCCTitleView *)self.navigationItem.titleView;
-    RCCTitleViewHelper *helper = [[RCCTitleViewHelper alloc] init:viewController navigationController:viewController.navigationController title:titleView.titleLabel.text subtitle:titleView.subtitleLabel.text titleImageData:nil isSetSubtitle:NO];
-    [helper setup:self.navigatorStyle];
-  }
   
   NSMutableDictionary *navButtonTextAttributes = [RCTHelpers textAttributesFromDictionary:self.navigatorStyle withPrefix:@"navBarButton"];
   NSMutableDictionary *leftNavButtonTextAttributes = [RCTHelpers textAttributesFromDictionary:self.navigatorStyle withPrefix:@"navBarLeftButton"];
@@ -669,6 +663,7 @@ const NSInteger TRANSPARENT_NAVBAR_TAG = 78264803;
         if ([prefersLargeTitles boolValue]) {
           self.navigationController.navigationBar.prefersLargeTitles = YES;
           self.navigationItem.largeTitleDisplayMode = UINavigationItemLargeTitleDisplayModeAlways;
+          self.navigationItem.titleView = nil;
         } else {
           self.navigationItem.largeTitleDisplayMode = UINavigationItemLargeTitleDisplayModeNever;
         }