Audit data-table styles

[tay1orjones]

High level steps to take for each component are outlined in the parent issue.

If there's no actionable items to PR, just close this issue without a linked PR

[joshblack]

Files

components	styles	Checked
_data-table.scss	_index.scss
_data-table-action.scss	action/_data-table-action.scss
_data-table-core.scss	_data-table.scss
_data-table-expandable.scss	expandable/_data-table-expandable.scss
_data-table-sort.scss	sort/_data-table-sort.scss
_data-table-inline-edit.scss	Removed?
_data-table-skeleton.scss	skeleton/_data-table-skeleton.scss
_mixins.scss	_mixins.scss

Next steps

• fix(theme): remove field-disabled, layer-disabled tokens #10535 this seems to edit a file where $layer-disabled is being used in our v10 code which doesn't make sense
• https://github.com/carbon-design-system/carbon/pull/9994/files this seems to use $background-brand