[AF] Don't sanitize or canonicalize email when getting AccountInfo in iOS

currently foo.bar@example.com gets converted to foobar@example.com
which gets saved as part of a server card' billing address. This is
different from the behavior in other platforms which results
in a nearly duplicate autofill profile getting synced across platforms.

Bug: 767445
Cq-Include-Trybots: master.tryserver.chromium.mac:ios-simulator-cronet;master.tryserver.chromium.mac:ios-simulator-full-configs
Change-Id: I23947f3ae1c7d35ada590e4165f5c2f52744b652
Reviewed-on: https://chromium-review.googlesource.com/804056Reviewed-by: Mihai Sardarescu <msarda@chromium.org>
Reviewed-by: Jérôme Lebel <jlebel@chromium.org>
Commit-Queue: Moe Ahmadi <mahmadi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#521351}

ios/chrome/browser/signin/profile_oauth2_token_service_ios_provider_impl.mm

@@ -25,7 +25,7 @@ ProfileOAuth2TokenServiceIOSProvider::AccountInfo GetAccountInfo(
   ProfileOAuth2TokenServiceIOSProvider::AccountInfo account_info;
   if (identity) {
     account_info.gaia = base::SysNSStringToUTF8([identity gaiaID]);
-    account_info.email = GetCanonicalizedEmailForIdentity(identity);
+    account_info.email = base::SysNSStringToUTF8([identity userEmail]);
   }
   return account_info;
 }