#21192)"

This reverts commit 1f8583d.

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Summary:
This sync includes the following changes:
- **[f7cdc89](react/react@f7cdc8936 )**: Also turn off enableSyncDefaultUpdates in RN test renderer ([#21293](react/react#21293)) //<Ricky>//
- **[4c9eb2a](react/react@4c9eb2af1 )**: Add dynamic flags to React Native ([#21291](react/react#21291)) //<Ricky>//
- **[9eddfbf](react/react@9eddfbf5a )**: [Fizz] Two More Fixes ([#21288](react/react#21288)) //<Sebastian Markbåge>//
- **[11b0759](react/react@11b07597e )**: Fix classes ([#21283](react/react#21283)) //<Sebastian Markbåge>//
- **[96d00b9](react/react@96d00b9bb )**: [Fizz] Random Fixes ([#21277](react/react#21277)) //<Sebastian Markbåge>//
- **[81ef539](react/react@81ef53953 )**: Always insert a dummy node with an ID into fallbacks ([#21272](react/react#21272)) //<Sebastian Markbåge>//
- **[a4a940d](react/react@a4a940d7a )**: [Fizz] Add unsupported Portal/Scope components ([#21261](react/react#21261)) //<Sebastian Markbåge>//
- **[f4d7a0f](react/react@f4d7a0f1e )**: Implement useOpaqueIdentifier ([#21260](react/react#21260)) //<Sebastian Markbåge>//
- **[dde875d](react/react@dde875dfb )**: [Fizz] Implement Hooks ([#21257](react/react#21257)) //<Sebastian Markbåge>//
- **[a597c2f](react/react@a597c2f5d )**: [Fizz] Fix reentrancy bug ([#21270](react/react#21270)) //<Sebastian Markbåge>//
- **[15e779d](react/react@15e779d92 )**: Reconciler should inject its own version into DevTools hook ([#21268](react/react#21268)) //<Brian Vaughn>//
- **[4f76a28](react/react@4f76a28c9 )**: [Fizz] Implement New Context ([#21255](react/react#21255)) //<Sebastian Markbåge>//
- **[82ef450](react/react@82ef450e0 )**: remove obsolete SharedArrayBuffer ESLint config ([#21259](react/react#21259)) //<Henry Q. Dineen>//
- **[dbadfa2](react/react@dbadfa2c3 )**: [Fizz] Classes Follow Up ([#21253](react/react#21253)) //<Sebastian Markbåge>//
- **[686b635](react/react@686b635b7 )**: Prevent reading canonical property of null ([#21242](react/react#21242)) //<Joshua Gross>//
- **[bb88ce9](react/react@bb88ce95a )**: Bugfix: Don't rely on `finishedLanes` for passive effects ([#21233](react/react#21233)) //<Andrew Clark>//
- **[343710c](react/react@343710c92 )**: [Fizz] Fragments and Iterable support ([#21228](react/react#21228)) //<Sebastian Markbåge>//
- **[933880b](react/react@933880b45 )**: Make time-slicing opt-in ([#21072](react/react#21072)) //<Ricky>//
- **[b0407b5](react/react@b0407b55f )**: Support more empty types ([#21225](react/react#21225)) //<Sebastian Markbåge>//
- **[3971371](react/react@39713716a )**: Merge isObject branches ([#21226](react/react#21226)) //<Sebastian Markbåge>//
- **[8a4a59c](react/react@8a4a59c72 )**: Remove textarea special case from child fiber ([#21222](react/react#21222)) //<Sebastian Markbåge>//
- **[dc108b0](react/react@dc108b0f5 )**: Track which fibers scheduled the current render work ([#15658](react/react#15658)) //<Brian Vaughn>//
- **[6ea7491](react/react@6ea749170 )**: Fix typo in comment ([#21214](react/react#21214)) //<inokawa>//
- **[b38ac13](react/react@b38ac13f9 )**: DevTools: Add post-commit hook ([#21183](react/react#21183)) //<Brian Vaughn>//
- **[b943aeb](react/react@b943aeba8 )**: Fix: Passive effect updates are never sync ([#21215](react/react#21215)) //<Andrew Clark>//
- **[d389c54](react/react@d389c54d1 )**: Offscreen: Use JS stack to track hidden/unhidden subtree state ([#21211](react/react#21211)) //<Brian Vaughn>//
- **[c486dc1](react/react@c486dc1a4 )**: Remove unnecessary processUpdateQueue ([#21199](react/react#21199)) //<Sebastian Markbåge>//
- **[cf45a62](react/react@cf45a623a )**: [Fizz] Implement Classes ([#21200](react/react#21200)) //<Sebastian Markbåge>//
- **[75c6165](react/react@75c616554 )**: Include actual type of `Profiler#id` on type mismatch ([#20306](react/react#20306)) //<Sebastian Silbermann>//
- **[1214b30](react/react@1214b302e )**: test: Fix "couldn't locate all inline snapshots" ([#21205](react/react#21205)) //<Sebastian Silbermann>//
- **[1a02d27](react/react@1a02d2792 )**: style: delete unused isHost check ([#21203](react/react#21203)) //<wangao>//
- **[782f689](react/react@782f689ca )**: Don't double invoke getDerivedStateFromProps for module pattern ([#21193](react/react#21193)) //<Sebastian Markbåge>//
- **[e90c76a](react/react@e90c76a65 )**: Revert "Offscreen: Use JS stack to track hidden/unhidden subtree state" ([#21194](react/react#21194)) //<Brian Vaughn>//
- **[1f8583d](react/react@1f8583de8 )**: Offscreen: Use JS stack to track hidden/unhidden subtree state ([#21192](react/react#21192)) //<Brian Vaughn>//
- **[ad6e6ec](react/react@ad6e6ec7b )**: [Fizz] Prepare Recursive Loop for More Types ([#21186](react/react#21186)) //<Sebastian Markbåge>//
- **[172e89b](react/react@172e89b4b )**: Reland Remove redundant initial of isArray ([#21188](react/react#21188)) //<Sebastian Markbåge>//
- **[7c1ba2b](react/react@7c1ba2b57 )**: Proposed new Suspense layout effect semantics ([#21079](react/react#21079)) //<Brian Vaughn>//
- **[316aa36](react/react@316aa3686 )**: [Scheduler] Fix de-opt caused by out-of-bounds access ([#21147](react/react#21147)) //<Andrey Marchenko>//
- **[b4f119c](react/react@b4f119cdf )**: Revert "Remove redundant initial of isArray ([#21163](react/react#21163))" //<Sebastian Markbage>//
- **[c031970](react/react@c03197063 )**: Revert "apply prettier ([#21165](react/react#21165))" //<Sebastian Markbage>//
- **[94fd121](react/react@94fd1214d )**: apply prettier ([#21165](react/react#21165)) //<Behnam Mohammadi>//
- **[b130a0f](react/react@b130a0f5c )**: Remove redundant initial of isArray ([#21163](react/react#21163)) //<Behnam Mohammadi>//
- **[2c9fef3](react/react@2c9fef32d )**: Remove redundant initial of hasOwnProperty ([#21134](react/react#21134)) //<Behnam Mohammadi>//
- **[1cf9978](react/react@1cf9978d8 )**: Don't pass internals to callbacks ([#21161](react/react#21161)) //<Sebastian Markbåge>//
- **[b9e4c10](react/react@b9e4c10e9 )**: [Fizz] Implement all the DOM attributes and special cases ([#21153](react/react#21153)) //<Sebastian Markbåge>//
- **[f8ef4ff](react/react@f8ef4ff57 )**: Flush discrete passive effects before paint ([#21150](react/react#21150)) //<Andrew Clark>//
- **[b48b38a](react/react@b48b38af6 )**: Support nesting of startTransition and flushSync (alt) ([#21149](react/react#21149)) //<Sebastian Markbåge>//

Changelog:
[General][Changed] - React Native sync for revisions c9aab1c...f7cdc89

jest_e2e[run_all_tests]

Reviewed By: rickhanlonii

Differential Revision: D27740113

fbshipit-source-id: 6e27204d78e3e16ed205170006cb97c0d6bfa957

…#21192)