fix: Removes unused import

Author: Katie George

src/support-prompt-group/styles.scss

@@ -5,8 +5,6 @@
 @use "../../node_modules/@cloudscape-design/design-tokens/index.scss" as awsui;
 @use "../internal/shared" as shared;
 
-@use "@cloudscape-design/component-toolkit/internal/focus-visible" as focus-visible;
-
 .root {
   @include shared.styles-reset;