From 57e985ecabf567f9a752e1e3ed56533f63787d0e Mon Sep 17 00:00:00 2001
From: Sina M <1591639+s1na@users.noreply.github.com>
Date: Fri, 16 May 2025 10:20:36 +0200
Subject: [PATCH] cmd/utils: remove deprecated LES flags (#31838)

They were not widely used in users setups.
---
 cmd/geth/main.go          |  6 ------
 cmd/utils/flags.go        | 23 -----------------------
 cmd/utils/flags_legacy.go | 37 -------------------------------------
 3 files changed, 66 deletions(-)

diff --git a/cmd/geth/main.go b/cmd/geth/main.go
index bdff96e369..733c9cf230 100644
--- a/cmd/geth/main.go
+++ b/cmd/geth/main.go
@@ -91,13 +91,7 @@ var (
 		utils.LogNoHistoryFlag,
 		utils.LogExportCheckpointsFlag,
 		utils.StateHistoryFlag,
-		utils.LightServeFlag,    // deprecated
-		utils.LightIngressFlag,  // deprecated
-		utils.LightEgressFlag,   // deprecated
-		utils.LightMaxPeersFlag, // deprecated
-		utils.LightNoPruneFlag,  // deprecated
 		utils.LightKDFFlag,
-		utils.LightNoSyncServeFlag, // deprecated
 		utils.EthRequiredBlocksFlag,
 		utils.LegacyWhitelistFlag, // deprecated
 		utils.CacheFlag,
diff --git a/cmd/utils/flags.go b/cmd/utils/flags.go
index a100ee1548..169f5ed49e 100644
--- a/cmd/utils/flags.go
+++ b/cmd/utils/flags.go
@@ -1245,28 +1245,6 @@ func setIPC(ctx *cli.Context, cfg *node.Config) {
 	}
 }
 
-// setLes shows the deprecation warnings for LES flags.
-func setLes(ctx *cli.Context, cfg *ethconfig.Config) {
-	if ctx.IsSet(LightServeFlag.Name) {
-		log.Warn("The light server has been deprecated, please remove this flag", "flag", LightServeFlag.Name)
-	}
-	if ctx.IsSet(LightIngressFlag.Name) {
-		log.Warn("The light server has been deprecated, please remove this flag", "flag", LightIngressFlag.Name)
-	}
-	if ctx.IsSet(LightEgressFlag.Name) {
-		log.Warn("The light server has been deprecated, please remove this flag", "flag", LightEgressFlag.Name)
-	}
-	if ctx.IsSet(LightMaxPeersFlag.Name) {
-		log.Warn("The light server has been deprecated, please remove this flag", "flag", LightMaxPeersFlag.Name)
-	}
-	if ctx.IsSet(LightNoPruneFlag.Name) {
-		log.Warn("The light server has been deprecated, please remove this flag", "flag", LightNoPruneFlag.Name)
-	}
-	if ctx.IsSet(LightNoSyncServeFlag.Name) {
-		log.Warn("The light server has been deprecated, please remove this flag", "flag", LightNoSyncServeFlag.Name)
-	}
-}
-
 // MakeDatabaseHandles raises out the number of allowed file handles per process
 // for Geth and returns half of the allowance to assign to the database.
 func MakeDatabaseHandles(max int) int {
@@ -1582,7 +1560,6 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *ethconfig.Config) {
 	setBlobPool(ctx, &cfg.BlobPool)
 	setMiner(ctx, &cfg.Miner)
 	setRequiredBlocks(ctx, cfg)
-	setLes(ctx, cfg)
 
 	// Cap the cache allowance and tune the garbage collector
 	mem, err := gopsutil.VirtualMemory()
diff --git a/cmd/utils/flags_legacy.go b/cmd/utils/flags_legacy.go
index ff63dd5685..dc41a75d11 100644
--- a/cmd/utils/flags_legacy.go
+++ b/cmd/utils/flags_legacy.go
@@ -39,12 +39,6 @@ var DeprecatedFlags = []cli.Flag{
 	CacheTrieRejournalFlag,
 	LegacyDiscoveryV5Flag,
 	TxLookupLimitFlag,
-	LightServeFlag,
-	LightIngressFlag,
-	LightEgressFlag,
-	LightMaxPeersFlag,
-	LightNoPruneFlag,
-	LightNoSyncServeFlag,
 	LogBacktraceAtFlag,
 	LogDebugFlag,
 	MinerNewPayloadTimeoutFlag,
@@ -88,37 +82,6 @@ var (
 		Value:    ethconfig.Defaults.TransactionHistory,
 		Category: flags.DeprecatedCategory,
 	}
-	// Light server and client settings, Deprecated November 2023
-	LightServeFlag = &cli.IntFlag{
-		Name:     "light.serve",
-		Usage:    "Maximum percentage of time allowed for serving LES requests (deprecated)",
-		Category: flags.DeprecatedCategory,
-	}
-	LightIngressFlag = &cli.IntFlag{
-		Name:     "light.ingress",
-		Usage:    "Incoming bandwidth limit for serving light clients (deprecated)",
-		Category: flags.DeprecatedCategory,
-	}
-	LightEgressFlag = &cli.IntFlag{
-		Name:     "light.egress",
-		Usage:    "Outgoing bandwidth limit for serving light clients (deprecated)",
-		Category: flags.DeprecatedCategory,
-	}
-	LightMaxPeersFlag = &cli.IntFlag{
-		Name:     "light.maxpeers",
-		Usage:    "Maximum number of light clients to serve, or light servers to attach to (deprecated)",
-		Category: flags.DeprecatedCategory,
-	}
-	LightNoPruneFlag = &cli.BoolFlag{
-		Name:     "light.nopruning",
-		Usage:    "Disable ancient light chain data pruning (deprecated)",
-		Category: flags.DeprecatedCategory,
-	}
-	LightNoSyncServeFlag = &cli.BoolFlag{
-		Name:     "light.nosyncserve",
-		Usage:    "Enables serving light clients before syncing (deprecated)",
-		Category: flags.DeprecatedCategory,
-	}
 	// Deprecated November 2023
 	LogBacktraceAtFlag = &cli.StringFlag{
 		Name:     "log.backtrace",