Revert "Add FXIOS-29807 [Glean] Migrate to use MockGleanWrapper. (#30100)"

[cyndichin]

📜 Tickets

Jira ticket
Github issue

💡 Description

This reverts commit 0938097. This is due to this PR being merged but it seems the original changes were overwritten for a suggested fix for another issue.

As you can see from the PR, the changes are unrelated to the PR description.

Since the code that was merged has not been reviewed, we want to undo these changes in main.

cc: @Rinwaoluwa

📝 Checklist

• I filled in the ticket numbers and a description of my work
• I updated the PR name to follow our PR naming guidelines
• I ensured unit tests pass and wrote tests for new code
• If working on UI, I checked and implemented accessibility (Dynamic Text and VoiceOver)
• If adding telemetry, I read the data stewardship requirements and will request a data review
• If adding or modifying strings, I read the guidelines and will request a string review from l10n
• If needed, I updated documentation and added comments to complex code

[mobiletest-ci-bot]

	Messages
📖	Project coverage: 38.29%

🧹 Tidy commit

Just 1 file(s) touched. Thanks for keeping it clean and review-friendly!

💬 Description craftsman

Great PR description! Reviewers salute you 🫡

🎉 BrowserViewController got smaller

Nice! BrowserViewController.swift got smaller by 5 lines.

✅ Per-file coverage

All changed files meet the threshold of 35.0%.

Client.app: Coverage: 37.27

File	Coverage
BrowserViewController.swift	32.03%	⚠️

Generated by 🚫 Danger Swift against 40b28db

[github-actions]

🚀 PR merged to main, targeting version: 145.0