removed legacy dep after switch to tracing

Cargo.toml

@@ -23,8 +23,5 @@ tokio = { version = "0.2", features = ["rt-threaded", "sync", "tcp", "time", "io
 tracing = "0.1"
 uuid = { version = "0.8", features = ["std", "v4"] }
 
-[dev-dependencies]
-env_logger = "0.7"
-
 [features]
 unstable = []

examples/zookeeper_example.rs

@@ -136,6 +136,5 @@ async fn zk_example() {
 
 #[tokio::main]
 async fn main() {
-    env_logger::init();
     zk_example().await;
 }

tests/test_cache.rs

@@ -5,15 +5,12 @@ use zookeeper_async::recipes::cache::PathChildrenCache;
 use zookeeper_async::CreateMode::*;
 use zookeeper_async::{Acl, WatchedEvent, ZooKeeper, ZooKeeperExt};
 
-use env_logger;
 use std::sync::Arc;
 use std::time::Duration;
 use tracing::*;
 
 #[tokio::test]
 async fn path_children_cache_test() {
-    let _ = env_logger::try_init();
-
     // Create a test cluster
     let cluster = ZkCluster::start(1);
 

tests/test_zk.rs

@@ -5,7 +5,6 @@ use zookeeper_async::{Acl, CreateMode, WatchedEvent, ZooKeeper};
 
 use test::ZkCluster;
 
-use env_logger;
 use std::sync::atomic::{AtomicUsize, Ordering};
 use std::sync::Arc;
 use std::thread;
@@ -14,8 +13,6 @@ use tracing::*;
 
 #[tokio::test]
 async fn zk_test() {
-    let _ = env_logger::try_init();
-
     // Create a test cluster
     let mut cluster = ZkCluster::start(3);