Revert "eth/gasprice: add query limit for FeeHistory to defend DDOS attack (ethereum#29644)"

This reverts commit 7c5a808.

Author: ARR4N

eth/gasprice/feehistory.go

@@ -44,7 +44,6 @@ const (
 	// maxBlockFetchers is the max number of goroutines to spin up to pull blocks
 	// for the fee history calculation (mostly relevant for LES).
 	maxBlockFetchers = 4
-	maxQueryLimit    = 100
 )
 
 // blockFees represents a single block for processing
@@ -241,9 +240,6 @@ func (oracle *Oracle) FeeHistory(ctx context.Context, blocks uint64, unresolvedL
 	if len(rewardPercentiles) != 0 {
 		maxFeeHistory = oracle.maxBlockHistory
 	}
-	if len(rewardPercentiles) > maxQueryLimit {
-		return common.Big0, nil, nil, nil, nil, nil, fmt.Errorf("%w: over the query limit %d", errInvalidPercentile, maxQueryLimit)
-	}
 	if blocks > maxFeeHistory {
 		log.Warn("Sanitizing fee history length", "requested", blocks, "truncated", maxFeeHistory)
 		blocks = maxFeeHistory