Remove ChromeBrowserProvider::CreateInfoBarView() method.

ios/public/provider/chrome/browser/test_chrome_browser_provider.mm

Index: ios/public/provider/chrome/browser/test_chrome_browser_provider.mm
diff --git a/ios/public/provider/chrome/browser/test_chrome_browser_provider.mm b/ios/public/provider/chrome/browser/test_chrome_browser_provider.mm
index be37967609b82790fc5c17c738c90559ac839781..7b22cb33f655cccf8e5356a69f660567a8a8454b 100644
--- a/ios/public/provider/chrome/browser/test_chrome_browser_provider.mm
+++ b/ios/public/provider/chrome/browser/test_chrome_browser_provider.mm
@@ -17,7 +17,6 @@
 #include "ios/public/provider/chrome/browser/signin/fake_chrome_identity_service.h"
 #include "ios/public/provider/chrome/browser/signin/test_signin_resources_provider.h"
 #import "ios/public/provider/chrome/browser/spotlight/test_spotlight_provider.h"
-#import "ios/public/provider/chrome/browser/ui/test_infobar_view.h"
 #import "ios/public/provider/chrome/browser/ui/test_styled_text_field.h"
 #import "ios/public/provider/chrome/browser/user_feedback/test_user_feedback_provider.h"
 #import "ios/public/provider/chrome/browser/voice/test_voice_search_provider.h"
@@ -47,12 +46,6 @@ TestChromeBrowserProvider* TestChromeBrowserProvider::GetTestProvider() {
   return static_cast<TestChromeBrowserProvider*>(provider);
 }
 
-InfoBarViewPlaceholder TestChromeBrowserProvider::CreateInfoBarView(
-    CGRect frame,
-    InfoBarViewDelegate* delegate) {
-  return [[TestInfoBarView alloc] init];
-}
-
 SigninResourcesProvider*
 TestChromeBrowserProvider::GetSigninResourcesProvider() {
   return signin_resources_provider_.get();