Revert of [stubs] KeyedStoreGeneric: inline dictionary property stores (patchset #2 id:10002 of https://codereview.chromium.org/2524943002/ )

Reason for revert:
Blocks current roll:
https://codereview.chromium.org/2526753003/

Bisect results:
https://codereview.chromium.org/2531483002

Original issue's description:
> Reland of [stubs] KeyedStoreGeneric: inline dictionary property stores
>
> For dictionary-mode receivers, the KeyedStoreGeneric stub can store
> properties directly in most cases. Doing so avoids the need to have
> an entry in the stub cache for every map/property combination.
>
> Original review: https://codereview.chromium.org/2504403005/
>
> Committed: https://crrev.com/7a963deb85a0cc04623947a759534c48e2871901
> Cr-Commit-Position: refs/heads/master@{#41218}

TBR=ishell@chromium.org,machenbach@chromium.org,jkummerow@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2522393002
Cr-Commit-Position: refs/heads/master@{#41251}