Revert "crypto/kzg4844: pull in the C and Go libs for KZG cryptography (ethereum#27155)"

This reverts commit ff65508.

Author: devopsbo3

build/ci.go

@@ -207,9 +207,9 @@ func doInstall(cmdline []string) {
 		csdb := build.MustLoadChecksums("build/checksums.txt")
 		tc.Root = build.DownloadGo(csdb, dlgoVersion)
 	}
-	// Disable CLI markdown doc generation in release builds and enable linking
-	// the CKZG library since we can make it portable here.
-	buildTags := []string{"urfave_cli_no_docs", "ckzg"}
+
+	// Disable CLI markdown doc generation in release builds.
+	buildTags := []string{"urfave_cli_no_docs"}
 
 	// Configure the build.
 	env := build.Env()
@@ -221,6 +221,7 @@ func doInstall(cmdline []string) {
 	if env.CI && runtime.GOARCH == "arm64" {
 		gobuild.Args = append(gobuild.Args, "-p", "1")
 	}
+
 	// We use -trimpath to avoid leaking local paths into the built executables.
 	gobuild.Args = append(gobuild.Args, "-trimpath")
 
@@ -298,7 +299,7 @@ func doTest(cmdline []string) {
 		csdb := build.MustLoadChecksums("build/checksums.txt")
 		tc.Root = build.DownloadGo(csdb, dlgoVersion)
 	}
-	gotest := tc.Go("test", "-tags=ckzg")
+	gotest := tc.Go("test")
 
 	// Test a single package at a time. CI builders are slow
 	// and some tests run into timeouts under load.

cmd/geth/main.go

@@ -107,7 +107,6 @@ var (
 		utils.CachePreimagesFlag,
 		utils.CacheLogSizeFlag,
 		utils.FDLimitFlag,
-		utils.CryptoKZGFlag,
 		utils.ListenPortFlag,
 		utils.DiscoveryPortFlag,
 		utils.MaxPeersFlag,

cmd/utils/flags.go

@@ -45,7 +45,6 @@ import (
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/crypto"
-	"github.com/ethereum/go-ethereum/crypto/kzg4844"
 	"github.com/ethereum/go-ethereum/eth"
 	ethcatalyst "github.com/ethereum/go-ethereum/eth/catalyst"
 	"github.com/ethereum/go-ethereum/eth/downloader"
@@ -455,12 +454,6 @@ var (
 		Usage:    "Raise the open file descriptor resource limit (default = system fd limit)",
 		Category: flags.PerfCategory,
 	}
-	CryptoKZGFlag = &cli.StringFlag{
-		Name:     "crypto.kzg",
-		Usage:    "KZG library implementation to use; gokzg (recommended) or ckzg",
-		Value:    "gokzg",
-		Category: flags.PerfCategory,
-	}
 
 	// Miner settings
 	MiningEnabledFlag = &cli.BoolFlag{
@@ -1754,6 +1747,7 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *ethconfig.Config) {
 			cfg.EthDiscoveryURLs = SplitAndTrim(urls)
 		}
 	}
+
 	// Override any default configs for hard coded networks.
 	switch {
 	case ctx.Bool(MainnetFlag.Name):
@@ -1863,14 +1857,6 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *ethconfig.Config) {
 			SetDNSDiscoveryDefaults(cfg, params.MainnetGenesisHash)
 		}
 	}
-	// Set any dangling config values
-	if ctx.String(CryptoKZGFlag.Name) != "gokzg" && ctx.String(CryptoKZGFlag.Name) != "ckzg" {
-		Fatalf("--%s flag must be 'gokzg' or 'ckzg'", CryptoKZGFlag.Name)
-	}
-	log.Info("Initializing the KZG library", "backend", ctx.String(CryptoKZGFlag.Name))
-	if err := kzg4844.UseCKZG(ctx.String(CryptoKZGFlag.Name) == "ckzg"); err != nil {
-		Fatalf("Failed to set KZG library implementation to %s: %v", ctx.String(CryptoKZGFlag.Name), err)
-	}
 }
 
 // SetDNSDiscoveryDefaults configures DNS discovery with the given URL if