use 'derive' feature for clap instead of depending directly on clap_derive

Author: icewind1991

espflash/Cargo.toml

@@ -20,8 +20,7 @@ binread = "2"
 bytemuck = { version = "1", features = ["derive"] }
 indicatif = "0.16"
 md5 = "0.7"
-clap = "3.0.0-rc.1"
-clap_derive = "3.0.0-rc.1"
+clap = { version = "3.0.0-rc.1", features = ["derive"] }
 serialport = "4"
 sha2 = "0.9"
 slip-codec = "0.3"

espflash/src/cli/clap.rs

@@ -1,4 +1,4 @@
-use clap_derive::Parser;
+use clap::Parser;
 
 #[derive(Parser)]
 pub struct ConnectArgs {

espflash/src/main.rs

@@ -4,8 +4,7 @@ use std::{
     str::FromStr,
 };
 
-use clap::{AppSettings, IntoApp, Parser as _};
-use clap_derive::Parser;
+use clap::{AppSettings, IntoApp, Parser};
 use espflash::{
     cli::{clap::*, connect, monitor::monitor},
     Chip, Config, Error, FirmwareImage, ImageFormatId, PartitionTable,