cmd, eth, node: deprecate personal namespace (#26390)

* eth: cmd: deprecate personal namespace

* eth: cmd: move deprecation to node

* node: disable toml of enablepersonal

* node: disable personal on ipc as well

* Update node/node.go

Co-authored-by: Martin Holst Swende <martin@swende.se>

* console: error -> warn

* node: less roulette

---------

Co-authored-by: Martin Holst Swende <martin@swende.se>

cmd/utils/flags.go

@@ -785,6 +785,11 @@ var (
 		Usage:    "Allow for unprotected (non EIP155 signed) transactions to be submitted via RPC",
 		Category: flags.APICategory,
 	}
+	EnablePersonal = &cli.BoolFlag{
+		Name:     "rpc.enabledeprecatedpersonal",
+		Usage:    "Enables the (deprecated) personal namespace",
+		Category: flags.APICategory,
+	}
 
 	// Network Settings
 	MaxPeersFlag = &cli.IntFlag{
@@ -1466,6 +1471,10 @@ func SetNodeConfig(ctx *cli.Context, cfg *node.Config) {
 		cfg.JWTSecret = ctx.String(JWTSecretFlag.Name)
 	}
 
+	if ctx.IsSet(EnablePersonal.Name) {
+		cfg.EnablePersonal = true
+	}
+
 	if ctx.IsSet(ExternalSignerFlag.Name) {
 		cfg.ExternalSigner = ctx.String(ExternalSignerFlag.Name)
 	}
@@ -1853,6 +1862,7 @@ 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):