chore(auth): Removed redundant `languageCode` null-check.

[Naveed-dev30]

Description

` String? get languageCode { if (_delegate.languageCode != null) { return _delegate.languageCode; }

return null;

}`

This code has a redundant check. Getter languageCode will always return String? for _delegate.languageCode. It is more easier to understand the simple and straight logic if is done as:

String? get languageCode { return _delegate.languageCode; }

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Breaking Change

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[russellwheatley]

hey @Naveed-dev30, if you sign the CLA, we can look to get this merged. Thanks 👍

[Naveed-dev30]

Hey @russellwheatley thanks for the reminder. I have signed. Kindly merge my PR.