Temporarily disable frozen/sealed elements kinds

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

Bug: chromium:972921
Change-Id: I04ced1c81b5f8730014ecee8935799fccc377a49
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1667006
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62283}

src/flags/flag-definitions.h

@@ -358,7 +358,7 @@ 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