[UI Test] Removed tabBar init from redesigned Domains Suggestions Screen

[pachlava]

Description

#20728 updates testFreeToPaidCardNavigation UI test, and includes an assertion for the screen that looked like this:

However, before #20728 was merged, another PR #20731 that redesigns this screen was merged to trunk:

As can be seen, the newer design uses an overlay style and makes the bottom navigation bar overlapped. Once #20728 was merged to trunk too, the test began to fail consistently, because DomainsSuggestionsScreen was initializing the tabBar, which no longer was visible in the app. The PR simply removes tabBar from screen init.

To test

• CI is green.

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📲 You can test the changes from this Pull Request in WordPress Alpha by scanning the QR code below to install the corresponding build.

	App Name	WordPress Alpha
	Configuration	Release-Alpha
	Build Number	pr20752-2fa6061
	Version	22.4
	Bundle ID	org.wordpress.alpha
	Commit	2fa6061
	App Center Build	WPiOS - One-Offs #5792

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📲 You can test the changes from this Pull Request in Jetpack Alpha by scanning the QR code below to install the corresponding build.

	App Name	Jetpack Alpha
	Configuration	Release-Alpha
	Build Number	pr20752-2fa6061
	Version	22.4
	Bundle ID	com.jetpack.alpha
	Commit	2fa6061
	App Center Build	jetpack-installable-builds #4822

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[guarani]

Tested on behalf of @staskus who's away today.
I ran just testFreeToPaidCardNavigation locally on iPhone and iPad and they both passed. The removal of tabBar looks good because of the recent changes to the domains screen.

Thanks a lot for making this change, @pachlava!

[tiagomar]

It's working fine locally and in CI. Also approving it, 2 > 1. =]

[mokagio]

Taking over merging so that trunk returns stable. Thank you @pachlava!