Driver, Gateway: Remove tokio 0.2 support (#118)

* Remove tokio 0.2 compat
* Remove tokio 0.2 test
* Remove tokio 0.2 CI

src/input/child.rs

@@ -4,10 +4,7 @@ use std::{
     mem,
     process::Child,
 };
-#[cfg(not(feature = "tokio-02-marker"))]
 use tokio::runtime::Handle;
-#[cfg(feature = "tokio-02-marker")]
-use tokio_compat::runtime::Handle;
 use tracing::debug;
 
 /// Handle for a child process which ensures that any subprocesses are properly closed

src/input/dca.rs

@@ -1,10 +1,7 @@
 use super::{codec::OpusDecoderState, error::DcaError, Codec, Container, Input, Metadata, Reader};
 use serde::Deserialize;
 use std::{ffi::OsStr, mem};
-#[cfg(not(feature = "tokio-02-marker"))]
 use tokio::{fs::File as TokioFile, io::AsyncReadExt};
-#[cfg(feature = "tokio-02-marker")]
-use tokio_compat::{fs::File as TokioFile, io::AsyncReadExt};
 
 /// Creates a streamed audio source from a DCA file.
 /// Currently only accepts the [DCA1 format](https://github.com/bwmarrin/dca).

src/input/ffmpeg_src.rs

@@ -11,10 +11,7 @@ use std::{
     ffi::OsStr,
     process::{Command, Stdio},
 };
-#[cfg(not(feature = "tokio-02-marker"))]
 use tokio::process::Command as TokioCommand;
-#[cfg(feature = "tokio-02-marker")]
-use tokio_compat::process::Command as TokioCommand;
 use tracing::debug;
 
 /// Opens an audio file through `ffmpeg` and creates an audio source.

src/input/mod.rs

@@ -58,10 +58,7 @@ use audiopus::coder::GenericCtl;
 use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
 use cached::OpusCompressor;
 use error::{Error, Result};
-#[cfg(not(feature = "tokio-02-marker"))]
 use tokio::runtime::Handle;
-#[cfg(feature = "tokio-02-marker")]
-use tokio_compat::runtime::Handle;
 
 use std::{
     convert::TryFrom,

src/input/ytdl_src.rs

@@ -11,10 +11,7 @@ use std::{
     io::{BufRead, BufReader, Read},
     process::{Command, Stdio},
 };
-#[cfg(not(feature = "tokio-02-marker"))]
 use tokio::{process::Command as TokioCommand, task};
-#[cfg(feature = "tokio-02-marker")]
-use tokio_compat::{process::Command as TokioCommand, task};
 use tracing::trace;
 
 const YOUTUBE_DL_COMMAND: &str = if cfg!(feature = "youtube-dlc") {