Remove support for old naming convention for EarlGrey tests on iOS.

ios/web/shell/test/BUILD.gn

Index: ios/web/shell/test/BUILD.gn
diff --git a/ios/web/shell/test/BUILD.gn b/ios/web/shell/test/BUILD.gn
index bc23dc3152732a68ff90759a321c0d9a0acf9542..150b03a05589a470f04cc5bff048540a4fe85050 100644
--- a/ios/web/shell/test/BUILD.gn
+++ b/ios/web/shell/test/BUILD.gn
@@ -6,10 +6,6 @@ import("//ios/build/config.gni")
 import("//ios/third_party/earl_grey/ios_eg_test.gni")
 
 ios_eg_test("ios_web_shell_egtests") {
-  # TODO(crbug.com/662404): Remove when downstream have been changed to use
-  # the new name for the xctest app bundles.
-  use_new_naming_convention = true
-
   sources = [
     "context_menu_egtest.mm",
     "meta_tags_egtest.mm",