Temporarily disable frozen/sealed elements kinds

... to prepare for merging this back to stable channel.

Bug: chromium:992914
Change-Id: Icbb257b5c02417d9222e60346575567360376264
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762021Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63277}

src/flags/flag-definitions.h

@@ -394,7 +394,7 @@ DEFINE_BOOL(enable_one_shot_optimization, true,
             "only be executed once")
 
 // Flag for sealed, frozen elements kind instead of dictionary elements kind
-DEFINE_BOOL_READONLY(enable_sealed_frozen_elements_kind, true,
+DEFINE_BOOL_READONLY(enable_sealed_frozen_elements_kind, false,
                      "Enable sealed, frozen elements kind")
 
 // Flags for data representation optimizations