fix: eliminate normalization in favor of cannonical expectation of hex key responses from getsc

[secretnamebasis]

stuff gets double decoded here.

it's derod's own GetSC RPC handler (rpc_dero_getsc.go:124) explicitly doing fmt.Sprintf("%x", []byte(varv.ValueString)) on every SC string variable before it leaves the daemon. That's the reference implementation's actual wire behavior, not an assumption layered on by any client.