Remove toCss helper

It’s not used

Author: thecrypticace

packages/tailwindcss-language-server/src/util/v4/design-system.ts

@@ -271,12 +271,6 @@ export async function loadDesignSystem(
 
       return roots
     },
-
-    toCss(nodes: postcss.Root | postcss.Node[]): string {
-      return Array.isArray(nodes)
-        ? postcss.root({ nodes }).toString().trim()
-        : nodes.toString().trim()
-    },
   })
 
   return design

packages/tailwindcss-language-service/src/util/v4/design-system.ts

@@ -59,5 +59,4 @@ export interface DesignSystem {
 export interface DesignSystem {
   dependencies(): Set<string>
   compile(classes: string[]): (postcss.Root | null)[]
-  toCss(nodes: postcss.Root | postcss.Node[]): string
 }