go back to ignoring revalidates from render (#71088)

Reverts most of #70446. We're going to ban calling
revalidateTag/revalidatePath during render in #71030, so this is no
longer needed

(also, this usage of `ctx.renderOpts.waitUntil` was never correct
anyway)

Author: lubieowoce

packages/next/src/server/app-render/app-render.tsx

@@ -517,22 +517,6 @@ async function generateDynamicFlightRenderResult(
       onError,
     }
   )
-  await waitAtLeastOneReactRenderTask()
-
-  if (
-    ctx.workStore.pendingRevalidates ||
-    ctx.workStore.revalidatedTags ||
-    ctx.workStore.pendingRevalidateWrites
-  ) {
-    const promises = Promise.all([
-      ctx.workStore.incrementalCache?.revalidateTag(
-        ctx.workStore.revalidatedTags || []
-      ),
-      ...Object.values(ctx.workStore.pendingRevalidates || {}),
-      ...(ctx.workStore.pendingRevalidateWrites || []),
-    ])
-    ctx.renderOpts.waitUntil = (p) => promises.then(() => p)
-  }
 
   return new FlightRenderResult(flightReadableStream, {
     fetchMetrics: ctx.workStore.fetchMetrics,

test/e2e/app-dir/revalidatetag-rsc/app/revalidate_via_page/page.tsx

@@ -20,23 +20,4 @@ describe('revalidateTag-rsc', () => {
       expect(randomNumber3).not.toEqual(randomNumber)
     })
   })
-
-  it('should revalidate fetch cache if revalidateTag invoked via server component', async () => {
-    const browser = await next.browser('/')
-    const randomNumber = await browser.elementById('data').text()
-    await browser.refresh()
-    const randomNumber2 = await browser.elementById('data').text()
-    expect(randomNumber).toEqual(randomNumber2)
-    await browser.elementByCss('#revalidate-via-page').click()
-    await browser.waitForElementByCss('#home')
-    await browser.elementByCss('#home').click()
-    await browser.waitForElementByCss('#data')
-    await retry(async () => {
-      // need to refresh to evict client router cache
-      await browser.refresh()
-      await browser.waitForElementByCss('#data')
-      const randomNumber3 = await browser.elementById('data').text()
-      expect(randomNumber3).not.toEqual(randomNumber)
-    })
-  })
 })