chore: revert optimistic exec (backport #8851)

[mergify]

What is the purpose of the change

Due to an issue with concurrent map writes stemming from the block sdk, we need to revert this PR until we have a patch version of the block sdk, the solution is to "import upstream cosmos-sdk changes to prio-nonce mempool"

see:
skip-mev/block-sdk#355

the halt is sporadic and would not fully halt the chain if validators are using systemd, as systemd would restart the node on fail, the halt looks like this:

fatal error: concurrent map writes

goroutine 5967690 [running]:
github.com/skip-mev/block-sdk/v2/block/base.(*PriorityNonceMempool[...]).Remove(0x6fc2fa0, {0x6e9d0e0, 0xc1b5526580?})
	github.com/skip-mev/block-sdk/[email protected]/block/base/priority_nonce.go:468 +0x2a5
github.com/skip-mev/block-sdk/v2/block/base.(*Mempool[...]).Remove(0x1ef601d?, {0x6e9d0e0?, 0xc1b5526580?})
	github.com/skip-mev/block-sdk/[email protected]/block/base/mempool.go:67 +0x2f
github.com/skip-mev/block-sdk/v2/block.(*LanedMempool).Remove(0x6ed4918?, {0x6e9d0e0, 0xc1b5526580})
	github.com/skip-mev/block-sdk/[email protected]/block/mempool.go:127 +0xd3
github.com/cosmos/cosmos-sdk/baseapp.(*BaseApp).runTx(0xc001656fc8, 0x7, {0xc1c8813b80, 0x26f, 0x26f})
	github.com/cosmos/[email protected]/baseapp/baseapp.go:944 +0xf90
github.com/cosmos/cosmos-sdk/baseapp.(*BaseApp).deliverTx(0xc001656fc8, {0xc1c8813b80?, 0x26f?, 0xc028b8c2c0?})
	github.com/cosmos/[email protected]/baseapp/baseapp.go:768 +0xb1
github.com/cosmos/cosmos-sdk/baseapp.(*BaseApp).internalFinalizeBlock(0xc001656fc8, {0x6ed4bc8, 0xc093fefd60}, 0xc028b57080)
	github.com/cosmos/[email protected]/baseapp/abci.go:793 +0x125c
github.com/cosmos/cosmos-sdk/baseapp/oe.(*OptimisticExecution).Execute.func1()
	github.com/cosmos/[email protected]/baseapp/oe/optimistic_execution.go:108 +0x84
created by github.com/cosmos/cosmos-sdk/baseapp/oe.(*OptimisticExecution).Execute in goroutine 24944
	github.com/cosmos/[email protected]/baseapp/oe/optimistic_execution.go:106 +0x545

Testing and Verifying

• review code

  ---

  This is an automatic backport of pull request chore: revert optimistic exec #8851 done by Mergify.