diff --git a/packages/next/src/config/__tests__/withHeadlessConfig.ts b/packages/next/src/config/__tests__/withHeadlessConfig.ts
deleted file mode 100644
index baae8e358..000000000
--- a/packages/next/src/config/__tests__/withHeadlessConfig.ts
+++ /dev/null
@@ -1,42 +0,0 @@
-import { toStringWithFunctions } from '../withHeadlessConfig';
-
-describe('toStringWithFunctions', () => {
-	it('converts regular objects to strings', () => {
-		const obj = {
-			a: 'a',
-			b: 'b',
-			c: 'c',
-		};
-		expect(toStringWithFunctions(obj)).toMatchInlineSnapshot(`
-      "{
-        "a": "a",
-        "b": "b",
-        "c": "c"
-      }"
-    `);
-	});
-	it('converts functions to strings', () => {
-		const obj = {
-			a: 'test',
-			fn: () => {
-				// eslint-disable-next-line no-console
-				console.log('test');
-			},
-			nested: {
-				fn: () => {},
-			},
-		};
-		expect(toStringWithFunctions(obj)).toMatchInlineSnapshot(`
-      "{
-        "a": "test",
-        "fn": () => {
-                      // eslint-disable-next-line no-console
-                      console.log('test');
-                  },
-        "nested": {
-          "fn": () => { }
-        }
-      }"
-    `);
-	});
-});