examples: Remove base64 dev dependency

We already have `base64` available from the `bitcoin` dependency, use it
instead of using a dev dependency.

Author: tcharding

Cargo.toml

@@ -34,7 +34,6 @@ actual-serde = { package = "serde", version = "1.0.103", optional = true }
 serde_test = "1.0.147"
 bitcoin = { version = "0.30.0", features = ["base64"] }
 secp256k1 = {version = "0.27.0", features = ["rand-std"]}
-actual-base64 = { package = "base64", version = "0.13.0" }
 
 [[example]]
 name = "htlc"

examples/psbt_sign_finalize.rs

@@ -3,9 +3,8 @@
 use std::collections::BTreeMap;
 use std::str::FromStr;
 
-use actual_base64 as base64;
 use bitcoin::sighash::SighashCache;
-use bitcoin::PrivateKey;
+use bitcoin::{base64, PrivateKey};
 use miniscript::bitcoin::consensus::encode::deserialize;
 use miniscript::bitcoin::hashes::hex::FromHex;
 use miniscript::bitcoin::psbt::PartiallySignedTransaction as Psbt;