Remove launch-your-store feature flag override

[ilyasfoo]

Changes proposed in this Pull Request:

P2: pfwcF5-Cs-p2

In order to enable launch-your-store feature in WPCOM sites, we need to remove the feature flag override.

How to test the changes in this Pull Request:

1. Use a WPCOM atomic e-commerce site
2. Go to Settings > WooCommerce > Site visibility
3. In an incognito window, open up site's frontend
4. Observe LYS branded coming soon page is displayed
5. Set to Coming soon and save
6. Open up /_cli in a new tab
7. Run plugin install --activate https://github.com/woocommerce/woocommerce/releases/download/wc-beta-tester-2.4.0/woocommerce-beta-tester.zip to install WCA Test Helper plugin
8. Go to Tools > WCA Test Helper > Features
9. Disable Launch your store
10. In an incognito window, open up site's frontend
11. Observe WPCOM branded coming soon page is displayed

Other information:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your changes, as applicable?

FOR PR REVIEWER ONLY:

• I have reviewed that everything is sanitized/escaped appropriately for any SQL or XSS injection possibilities. I made sure Linting is not ignored or disabled.

[github-actions]

Size Change: 0 B

Total Size: 201 kB

ℹ️ View Unchanged

Filename	Size
./build/53.js	1.08 kB
./build/index.css	731 B
./build/index.js	126 kB
./build/marketing.js	58.3 kB
./build/payment-gateway-suggestions.css	1.24 kB
./build/payment-gateway-suggestions.js	6.57 kB
./build/plugins.js	3.93 kB
./build/style-index.css	2.15 kB
./build/style-marketing.css	800 B

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[moon0326]

LGTM and tested well 👍 🚀