[iOS] Reenable disabled test

It seems to pass now.

Fixed: 1129589
Change-Id: Id2fd68a6e3f860f593871c4a223bc0a8f034cefd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2460825Reviewed-by: Olivier Robin <olivierrobin@chromium.org>
Commit-Queue: Gauthier Ambard <gambard@chromium.org>
Cr-Commit-Position: refs/heads/master@{#815142}

ios/chrome/browser/ui/reading_list/reading_list_egtest.mm

@@ -966,10 +966,6 @@ void AssertIsShowingDistillablePage(bool online, const GURL& distillable_url) {
 
 // Tests that the VC can be dismissed by swiping down.
 - (void)testSwipeDownDismiss {
-  // TODO(crbug.com/1129589): Test disabled on iOS14 iPhones.
-  if (base::ios::IsRunningOnIOS14OrLater() && ![ChromeEarlGrey isIPadIdiom]) {
-    EARL_GREY_TEST_DISABLED(@"Fails on iOS14 iPhones.");
-  }
   if (!base::ios::IsRunningOnOrLater(13, 0, 0)) {
     EARL_GREY_TEST_SKIPPED(@"Test disabled on iOS 12 and lower.");
   }