Remove unnecessary dotenv dependency

Author: brycefisher

Cargo.toml

@@ -32,7 +32,6 @@ chrono = "0.4"
 lazy_static = "1.4"
 
 [dev-dependencies]
-dotenv = "0.14.1"
 lettre = "0.9"
 lettre_email = "0.9"
 rustls-connector = "0.8.0"

examples/rustls.rs

@@ -3,12 +3,10 @@ extern crate rustls_connector;
 
 use std::{env, error::Error, net::TcpStream};
 
-use dotenv::dotenv;
 use rustls_connector::RustlsConnector;
 
 fn main() -> Result<(), Box<dyn Error>> {
     // Read config from environment or .env file
-    dotenv().ok();
     let host = env::var("HOST").expect("missing envvar host");
     let user = env::var("MAILUSER").expect("missing envvar USER");
     let password = env::var("PASSWORD").expect("missing envvar password");