Revert "Merge branch '474646-remove-btn-class-from-button-scss-part-2' into 'master'"

What does this MR do and why?

Revert "Merge branch '474646-remove-btn-class-from-button-scss-part-2' into 'master'"

This reverts merge request !167831 (merged). It was causing button issues on .com.

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