remove memory leak from test suite

test/cases/context/issue-10969/index.js

@@ -1,21 +1,12 @@
-expect.extend({
-	toBeValidModuleId(received, moduleIdString) {
-		const pass = typeof received === "number" || received === moduleIdString;
-		if (pass) {
-			return {
-				message: () => `expected ${received} not to be a valid module id`,
-				pass: true
-			};
-		} else {
-			return {
-				message: () => `expected ${received} to be a valid module id`,
-				pass: false
-			};
-		}
-	}
-});
-
 it("should replace ! with %21 in the module id string of the context module", function () {
-	const moduleId = require.context("./folder", true, /^(?!file1\.js$).*$/i, "lazy").id;
-	expect(moduleId).toBeValidModuleId("./context/issue-10969/folder lazy recursive ^(?%21file1\\.js$).*$/");
+	const moduleId = require.context(
+		"./folder",
+		true,
+		/^(?!file1\.js$).*$/i,
+		"lazy"
+	).id;
+	if (typeof moduleId !== "number")
+		expect(moduleId).toBe(
+			"./context/issue-10969/folder lazy recursive ^(?%21file1\\.js$).*$/"
+		);
 });