Remove full-icu

[kevinxh]

Description

(will need to recreate this PR against release- branch if we decide to do a patch release)

The retail-react-app has a dependency full-icu which is used for i18n, however, it appears since node.js v12, it's no longer needed. This PR is trying to verify the effect.

Since Node.js 13, full ICU data has been the default for Node.js. So this module is only helpful for older Node.js versions, or custom builds which specify small-icu.
(see https://www.npmjs.com/package/full-icu)

What have i test?

• npm start -> http://localhost:3000/global/es-MX/ works
• npm run build-translations
• npm run compile-translations
• npm run extract-default-translations

Types of Changes

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Documentation update
• Breaking change (could cause existing functionality to not work as expected)
• Other changes (non-breaking changes that does not fit any of the above)

Breaking changes include:

• Removing a public function or component or prop
• Adding a required argument to a function
• Changing the data type of a function parameter or return value
• Adding a new peer dependency to package.json

Changes

• (change1)

How to Test-Drive This PR

• (step1)

Checklists

General

• Changes are covered by test cases
• CHANGELOG.md updated with a short description of changes (not required for documentation updates)

Accessibility Compliance

You must check off all items in one of the follow two lists:

• There are no changes to UI

or...

• Changes were tested with a Screen Reader (iOS VoiceOver or Android Talkback) and had no issues
• Changes comply with WCAG 2.0 guidelines levels A and AA
• Changes to common UI patterns and interactions comply with WAI-ARIA best practices

Localization

• Changes include a UI text update in the Retail React App (which requires translation)