[Firebase 10] Remove CoreDiagnostics SDK

[ncooke3]

Description

The SDK is no longer needed and can be removed.

Reproducing the issue

No response

Firebase SDK Version

9.5.0

Xcode Version

13.3.1

Installation Method

Swift Package Manager

Firebase Product(s)

All

Targeted Platforms

iOS, tvOS, watchOS, macOS, macCatalyst

Relevant Log Output

No response

If using Swift Package Manager, the project's Package.resolved

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Replace this line with the contents of your Package.resolved.

If using CocoaPods, the project's Podfile.lock

Expand Podfile.lock snippet

Replace this line with the contents of your Podfile.lock!