fix(firestore): revert fix for `undefined` document snapshot data after "clear site data"#9162

dconeybe merged 1 commit intomainfirebase/firebase-js-sdk:mainfrom

dconeybe/ClearInMemoryStateWhenIndexedDBIsClearedRevertfirebase/firebase-js-sdk:dconeybe/ClearInMemoryStateWhenIndexedDBIsClearedRevertCopy head branch name to clipboard