refactor: remove ResponsiveContainer ref hack

[ckifer]

Description

remove hack added in #4008 to avoid breaking change

Related Issue

N/A

Motivation and Context

3.x, do all breaking changes now

How Has This Been Tested?

• npm test
• confirm this is the correct way for ref to be surfaced

Screenshots (if appropriate):

N/A

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• I have added a storybook story or extended an existing story to show my changes
• All new and existing tests passed.

[HHongSeungWoo]

Great!