remove unused utility functions

- they're from the turborepo template

packages/utils/src/index.tsx

@@ -1,3 +1,4 @@
-export { toSlug } from "./toSlug";
-export { useIsomorphicLayoutEffect } from "./useIsomorphicLayoutEffect";
-export { usePrevious } from "./usePrevious";
+// import colorNamesToValuePairs from "./colorNamesToValuePairs"
+// export { colorNamesToValuePairs }
+
+export {}