update vary test

Author: huozhi

test/e2e/vary-header/test/index.test.ts

@@ -12,21 +12,16 @@ describe('Vary Header Tests', () => {
     expect(res.headers.get('vary')).toContain('Custom-Header')
   })
 
-  it('should preserve custom vary header and append RSC headers in app route handlers', async () => {
+  it('should preserve custom vary header', async () => {
     const res = await next.fetch('/normal')
     const varyHeader = res.headers.get('vary')
 
     // Custom header is preserved
     expect(varyHeader).toContain('User-Agent')
     expect(res.headers.get('cache-control')).toBe('s-maxage=3600')
-
-    // Next.js internal headers are appended
-    expect(varyHeader).toContain('RSC')
-    expect(varyHeader).toContain('Next-Router-State-Tree')
-    expect(varyHeader).toContain('Next-Router-Prefetch')
   })
 
-  it('should preserve middleware vary header in combination with route handlers', async () => {
+  it('should preserve middleware vary header', async () => {
     const res = await next.fetch('/normal')
     const varyHeader = res.headers.get('vary')
     const customHeader = res.headers.get('my-custom-header')
@@ -37,10 +32,5 @@ describe('Vary Header Tests', () => {
     // Both middleware and route handler vary headers are preserved
     expect(varyHeader).toContain('my-custom-header')
     expect(varyHeader).toContain('User-Agent')
-
-    // Next.js internal headers are still present
-    expect(varyHeader).toContain('RSC')
-    expect(varyHeader).toContain('Next-Router-State-Tree')
-    expect(varyHeader).toContain('Next-Router-Prefetch')
   })
 })