cmd/geth, core, light, mobile: removed state account StartingNonce

All account's nonce start at 0.

cmd/geth/chaincmd.go

@@ -99,9 +99,6 @@ func importChain(ctx *cli.Context) error {
 	if len(ctx.Args()) != 1 {
 		utils.Fatalf("This command requires an argument.")
 	}
-	if ctx.GlobalBool(utils.TestNetFlag.Name) {
-		state.StartingNonce = 1048576 // (2**20)
-	}
 	stack := makeFullNode(ctx)
 	chain, chainDb := utils.MakeChain(ctx, stack)
 	defer chainDb.Close()