Components: Remove unnecessary Tooltip component from linked button

[im3dabasia]

Fixes: #66271

What?

Quick code quality PR to remove unnecessary usage of the Tooltip component.

Why?

Improve on code quality

How?

Remove Tooltip component and leverage the built-in Button label prop.

Testing Instructions

border-box-control-linked button

1. Select a Group block.
2. In the block Settings panel, go to Styles > Border & Shadow
3. Hover or focus the 'Unlink sides / Link sides' button.
4. Observe the button tooltip is unchanged: 'Unlink sides' or 'Link sides' depending on the UI state.
5. Observe the accessible name (aria-label) of the Button is unchanged and matches the tooltip.

spacing-sizes-control linked button

1. Select a Spacer block.
2. In the block Settings panel, go to Styles > Dimensions > Margin
3. Hover or focus the 'Unlink sides / Link sides' button.
4. Observe the button tooltip is unchanged: 'Unlink sides' or 'Link sides' depending on the UI state.
5. Observe the accessible name (aria-label) of the Button is unchanged and matches the tooltip.

Screenshots

border-box-control-linked button

spacing-sizes-control linked button

box-control-linked-button (I tested in the in the boxcontrol story)

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Co-authored-by: im3dabasia <[email protected]>
Co-authored-by: ciampo <[email protected]>
Co-authored-by: afercia <[email protected]>

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