Status is pending. Return the pending future.

[muratGG]

Operating system: iOS
Operating system version: ALL

What steps will reproduce the problem:

1. Calling RequestPermission

What is the expected result?
At least lower level log

What happens instead of that?
SDK logs an error

Please provide any other information below, and attach a screenshot if possible.
As our analytics tools logs every error, we are getting errors from every user because of this unnecessary log.
Simply removing this log or changing its log level will fix the issue.

firebase-cpp-sdk/messaging/src/ios/messaging.mm

Line 183 in 6946d8a

LogError("Status is pending. Return the pending future.");

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