revert(storybook): remove preview.ts change from infield-button PR

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: Rajdeep Chandra

2nd-gen/packages/swc/.storybook/preview.ts

@@ -490,8 +490,6 @@ const preview = {
                 ['Rendering and styling migration analysis'],
                 'Search',
                 ['Rendering and styling migration analysis'],
-                'Sidenav',
-                ['Accessibility migration analysis'],
                 'Slider',
                 ['Rendering and styling migration analysis'],
                 'Status light',