Drop unused re-imports of skjson primitives in core/index

Author: bennostein

skiplang/skjson/ts/binding/src/index.ts

@@ -34,7 +34,7 @@ export abstract class Frozen implements Managed {
   protected abstract freeze(): void;
 }
 
-export function sk_freeze<T extends object>(x: T): T & Managed {
+function sk_freeze<T extends object>(x: T): T & Managed {
   return Object.defineProperty(x, sk_managed, {
     enumerable: false,
     writable: false,

skipruntime-ts/core/src/index.ts

@@ -12,12 +12,7 @@ import type {
   JsonConverter,
   JsonObject,
 } from "../skiplang-json/index.js";
-import {
-  sk_freeze,
-  isSkManaged,
-  SkManaged,
-  checkOrCloneParam,
-} from "../skiplang-json/index.js";
+import { SkManaged, checkOrCloneParam } from "../skiplang-json/index.js";
 
 import { sknative } from "../skiplang-std/index.js";
 
@@ -54,7 +49,6 @@ import {
   type FromBinding,
 } from "./binding.js";
 
-export { sk_freeze, isSkManaged };
 export * from "./api.js";
 export * from "./errors.js";