Simplify ARIA label description to reduce redundancy

advanced_html_css/accessibility/wai_aria.md

@@ -55,7 +55,7 @@ ARIA labels help users of assistive technologies better understand the content o
 
 You may remember being warned against using the `id` attribute earlier in the curriculum. To briefly recap, normally you want to avoid overusing `id` attributes or even using it when it isn't necessary (which more often than not, it isn't, and you should stick with using classes). There are several ARIA attributes, however, that actually *require* another element to have an `id`.
 
-When using such ARIA attributes, you would provide an `id` to one element, and you would then pass in that `id` value as another element's ARIA attribute value. This creates a link between the elements, similar to how a `<label>` element's `for` attribute creates a link to an input's `id`. Of the three types of ARIA labels mentioned below, both `aria-labelledby` and `aria-describedby` are two of the ARIA attributes that require another element to be given an `id`.
+When using such ARIA attributes, you would provide an `id` to one element, and you would then pass in that `id` value as another element's ARIA attribute value. This creates a link between the elements, similar to how a `<label>` element's `for` attribute creates a link to an input's `id`. Of the three types of ARIA labels mentioned below, `aria-labelledby` and `aria-describedby` are ARIA attributes that require another element to have an `id`.
 
 #### aria-label