chore: Remove removeUndefinedKeys

Author: koki-develop

lib/internal/util.spec.ts

@@ -1,5 +1,5 @@
 import { describe, expect, test } from "bun:test";
-import { removeUndefinedKeys, toUpperCamelCase } from "./util";
+import { toUpperCamelCase } from "./util";
 
 describe("toUpperCamelCase", () => {
   test.each([
@@ -30,12 +30,3 @@ describe("toUpperCamelCase", () => {
     expect(toUpperCamelCase(input)).toBe(expected);
   });
 });
-
-describe("removeUndefinedKeys", () => {
-  test.each([
-    [{ foo: "bar", baz: undefined }, ["foo"]],
-    [{ foo: "bar", baz: undefined, hoge: "fuga" }, ["foo", "hoge"]],
-  ])("removeUndefinedKeys(%j) returns %j", (input, expected) => {
-    expect(Object.keys(removeUndefinedKeys(input))).toEqual(expected);
-  });
-});

lib/internal/util.ts

@@ -4,11 +4,3 @@ export function toUpperCamelCase(str: string): string {
     .map((word) => word.charAt(0).toUpperCase() + word.slice(1))
     .join("");
 }
-
-export function removeUndefinedKeys<T extends Record<string, unknown>>(
-  obj: T,
-): Partial<T> {
-  return Object.fromEntries(
-    Object.entries(obj).filter(([_, value]) => value !== undefined),
-  ) as Partial<T>;
-}