refactor: remove unused isMobile function

- Deleted unused isMobile() function that was checking window width
- Cleaned up code by removing redundant window width check that wasn't being utilized in the component

src/components/ui/apple-cards-carousel.tsx

@@ -59,9 +59,6 @@ export const Carousel = ({ items, initialScroll = 0 }: CarouselProps) => {
   };
 
   
-  const isMobile = () => {
-    return window && window.innerWidth < 768;
-  };
   
   return (
       <div className="relative w-full">