don't prune go-header store

Author: pthmas

pkg/sync/sync_service.go

@@ -172,21 +172,11 @@ func (syncService *SyncService[H]) Start(ctx context.Context) error {
 	}
 
 	// create syncer, must be before initFromP2PWithRetry which calls startSyncer.
-	syncOpts := []goheadersync.Option{goheadersync.WithBlockTime(syncService.conf.Node.BlockTime.Duration)}
-	// Map ev-node pruning configuration to go-header's pruning window: we approximate
-	// "keep N recent heights" as "retain headers for N * blockTime".
-	if syncService.conf.Node.PruningEnabled && syncService.conf.Node.PruningKeepRecent > 0 {
-		pruningWindow := syncService.conf.Node.BlockTime.Duration * time.Duration(syncService.conf.Node.PruningKeepRecent)
-		// Only set a pruning window if the computed duration is positive.
-		if pruningWindow > 0 {
-			syncOpts = append(syncOpts, goheadersync.WithPruningWindow(pruningWindow))
-		}
-	}
 	if syncService.syncer, err = newSyncer(
 		syncService.ex,
 		syncService.store,
 		syncService.sub,
-		syncOpts,
+		[]goheadersync.Option{goheadersync.WithBlockTime(syncService.conf.Node.BlockTime.Duration)},
 	); err != nil {
 		return fmt.Errorf("failed to create syncer: %w", err)
 	}