chore: use core js

[jung-han]

Please check if the PR fulfills these requirements

• It's submitted to right branch according to our branching model
• It's right issue type on title
• When resolving a specific issue, it's referenced in the PR's title (e.g. fix #xxx[,#xxx], where "xxx" is the issue number)
• The commit message follows our guidelines
• Tests for the changes have been added (for bug fixes/features)
• Docs have been added/updated (for bug fixes/features)
• It does not introduce a breaking change or has description for the breaking change

Description

• remove babel-polyfill
• use core-js directly

file name	before size	after size	variance	etc
tui-chart.js	1.61MB	1.65MB	40KB ↗️	include tui.code-snippet
tui-chart-polyfill.js	1.88MB	1.73MB	160KB ↘️	use core-js directly
tui-chart-all.js	2.09MB	1.82MB	270KB ↘️	decrease code-snippet size 70KB

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Thank you for your contribution to TOAST UI product. 🎉 😘 ✨

[junghwan-park]

이견 없습니다! 고생 많았어요 ㅎㅎ

[jinwoo-kim-nhn]

리뷰 완료 했습니다. animationFrame 관련해서는 core-js에 없나보네요.. 수고하셨습니다!