remove unused utility functions

- they're from the turborepo template

packages/utils/src/index.tsx

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

packages/utils/src/toSlug.ts

@@ -1,18 +0,0 @@
-/**
- * Return a slugified copy of a string.
- *
- * @param {string} str The string to be slugified
- * @return {string} The slugified string.
- */
-export function toSlug(str: string): string {
-	let s = str
-	if (!s) {
-		return ""
-	}
-	s = s.toLowerCase().trim()
-	s = s.replace(/ & /g, " and ")
-	s = s.replace(/[ ]+/g, "-")
-	s = s.replace(/[-]+/g, "-")
-	s = s.replace(/[^a-z0-9-]+/g, "")
-	return s
-}

packages/utils/src/useIsomorphicLayoutEffect.tsx

@@ -1,13 +0,0 @@
-import * as React from "react"
-
-/**
- * On the server, React emits a warning when calling `useLayoutEffect`.
- * This is because neither `useLayoutEffect` nor `useEffect` run on the server.
- * We use this safe version which suppresses the warning by replacing it with a noop on the server.
- *
- * See: https://reactjs.org/docs/hooks-reference.html#uselayouteffect
- */
-const useIsomorphicLayoutEffect =
-	typeof window !== "undefined" ? React.useLayoutEffect : () => {}
-
-export { useIsomorphicLayoutEffect }

packages/utils/src/usePrevious.tsx

@@ -1,17 +0,0 @@
-import * as React from "react"
-
-function usePrevious<T>(value: T) {
-	// The ref object is a generic container whose current property is mutable ...
-	// ... and can hold any value, similar to an instance property on a class
-	const ref = React.useRef<T>(value)
-
-	// Store current value in ref
-	React.useEffect(() => {
-		ref.current = value
-	}, [value]) // Only re-run if value changes
-
-	// Return previous value (happens before update in useEffect above)
-	return ref.current
-}
-
-export { usePrevious }