Remove `react-transition-group` dependency #14613

Job	Run time
Install node modules	33s
Zip and Upload files to Veracode	0s
Test for a11y violations	2m 40s
Build and lint packages (ubuntu-latest)	1m 23s
Audit node modules	26s
Build website and playgrounds	3m 14s
Build and lint packages (windows-latest)	2m 36s
Run e2e tests	2m 54s
Run unit tests	3m 58s
Run visual tests (css)	8m 0s
Run visual tests (react)	8m 8s
Push static files to github pages	2m 8s
	36m 0s

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