cmd/evm: don't strip prefixes on requests over t8n (#33997)

Found this bug while implementing the Amsterdam changes t8n changes for
benchmark test filling in EELS.

Prefixes were incorrectly being stripped on requests over t8n and this
was leading to `fill` correctly catching hash mismatches on the EELS
side for some BAL tests. Though this was caught there, I think this
change might as well be cherry-picked there instead and merged to
`master`.

This PR brings this behavior to parity with EELS for Osaka filling.
There are still some quirks with regards to invalid block tests but I
did not investigate this further.

cmd/evm/internal/t8ntool/execution.go

@@ -365,10 +365,6 @@ func (pre *Prestate) Apply(vmConfig vm.Config, chainConfig *params.ChainConfig,
 		// Set requestsHash on block.
 		h := types.CalcRequestsHash(requests)
 		execRs.RequestsHash = &h
-		for i := range requests {
-			// remove prefix
-			requests[i] = requests[i][1:]
-		}
 		execRs.Requests = requests
 	}