docs: update a11y docs for landmarks (#2996)

Author: ranjbarreza

Diff for: src/guide/best-practices/accessibility.md

@@ -127,10 +127,6 @@ Users can navigate an application through headings. Having descriptive headings
 | form            | role="form"          | Collection of form-associated elements                                                                           |
 | section         | role="region"        | Content that is relevant and that users will likely want to navigate to. Label must be provided for this element |
 
-:::tip Tip:
-It is recommended to use landmark HTML elements with redundant landmark role attributes in order to maximize compatibility with legacy [browsers that don’t support HTML5 semantic elements](https://caniuse.com/#feat=html5semantic).
-:::
-
 [Read more about landmarks](https://www.w3.org/TR/wai-aria-1.2/#landmark_roles)
 
 ## Semantic Forms {#semantic-forms}