message: refactor(case): remove leftover
diff: // tracing: off
  import * as St from "../Structural"
  -import type { Compute } from "../Utils"
  -
  -export type ConstructorArgs<T, K extends PropertyKey> = Compute<
  - {} extends Omit<T, "copy" | "toJSON" | "toString" | symbol | K>
  - ? void
  - : Omit<T, "copy" | "toJSON" | "toString" | symbol | K>,
  - "flat"
  ->
  export const CaseBrand = Symbol()
  