Revert of [stubs] KeyedStoreGeneric: inline dictionary property stores (patchset #5 id:100001 of https://codereview.chromium.org/2504403005/ )

Reason for revert:
Blocks roll: https://codereview.chromium.org/2526573002/

Original issue's description:
> [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.
>
> Committed: https://crrev.com/af168e330e95c4460fd1bb7734f0e9a750f2e748
> Cr-Commit-Position: refs/heads/master@{#41185}

TBR=ishell@chromium.org,rmcilroy@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/2528583002
Cr-Commit-Position: refs/heads/master@{#41207}