Breaking Change: Remove built-in icons

[reesscot]

Description of changes

This PR is an updated version of #1310. It removes all the icons not used in our code base and updates all the docs examples to use pathData instead of the built-in icons.

@aws-amplify/ui-react BEFORE removing icons:

npm notice === Tarball Details === 
npm notice name:          @aws-amplify/ui-react                   
npm notice version:       2.19.1                                  
npm notice filename:      @aws-amplify/ui-react-2.19.1.tgz        
npm notice package size:  773.5 kB                                
npm notice unpacked size: 6.2 MB                                  
npm notice shasum:        ac9a71590f1750b68f6b889a88b1b0a3347638e5
npm notice integrity:     sha512-MLYaghCnYK7Cv[...]rim+eNwHvwyKw==
npm notice total files:   3091                                    
npm notice 

@aws-amplify/ui-react AFTER removing icons:

npm notice === Tarball Details === 
npm notice name:          @aws-amplify/ui-react                   
npm notice version:       2.19.1                                  
npm notice filename:      @aws-amplify/ui-react-2.19.1.tgz        
npm notice package size:  195.0 kB                                
npm notice unpacked size: 2.1 MB                                  
npm notice shasum:        a88772137083cfaf30cc7cefc098847365643e4d
npm notice integrity:     sha512-zo0DYkzZCrLJh[...]7BsrC8c75Frww==
npm notice total files:   469                                     
npm notice 

Issue #, if available

Description of how you validated changes

Checklist

• Add BREAKING CHANGE changeset
• PR description included
• yarn test passes
• Tests are updated
• No side effects or sideEffects field updated
• Relevant documentation is changed or added (and PR referenced)

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[changeset-bot]

🦋 Changeset detected

Latest commit: 537cd03

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@aws-amplify/ui-react	Major

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[dbanksdesign]

LGTM!

[ayush987goyal]

Can you please make sure the following icons are not removed since they are being used in the staging repo?

1. IconClose
2. IconCheckCircleOutline
3. IconHighlightOff
4. IconFiberManualRecord

[reesscot]

• IconCheckCircleOutline

• IconHighlightOff

• IconFiberManualRecord

Thanks for the review @ayush987goyal. IconClose is still there but I will add the other three back:
IconCheckCircleOutline
IconHighlightOff
IconFiberManualRecord

[reesscot]

• IconCheckCircleOutline
• IconHighlightOff
• IconFiberManualRecord

Thanks for the review @ayush987goyal. IconClose is still there but I will add the other three back: IconCheckCircleOutline IconHighlightOff IconFiberManualRecord

Added back the icons needed by staging repo

[lgtm-com]

This pull request introduces 1 alert when merging d476820 into 28bf92d - view on LGTM.com

new alerts:

• 1 for Unused variable, import, function or class

[ayush987goyal]

Thanks @reesscot . Let's discuss offline to see how can we remove the dependency from staging repo on these icons. We can then remove these ones too later.

[wlee221]

🎉