Remove disconnect method from Connection

Use Drop implementation instead

src/connection/base.rs

@@ -38,8 +38,6 @@ pub trait Connection: Sized {
 
     fn connect() -> Result<Self>;
 
-    fn disconnect(&self) -> Result<()>;
-
     fn socket_path(n: u8) -> PathBuf {
         Self::ipc_path().join(format!("discord-ipc-{}", n))
     }

src/connection/unix.rs

@@ -20,17 +20,12 @@ impl Connection for UnixConnection {
     fn connect() -> Result<Self> {
         let connection_name = Self::socket_path(0);
         let socket = UnixStream::connect(connection_name)?;
-        // socket.set_nonblocking(true)?;
+        socket.set_nonblocking(true)?;
         socket.set_write_timeout(Some(time::Duration::from_secs(30)))?;
         socket.set_read_timeout(Some(time::Duration::from_secs(30)))?;
         Ok(Self { socket })
     }
 
-    fn disconnect(&self) -> Result<()> {
-        self.socket.shutdown(Shutdown::Both)?;
-        Ok(())
-    }
-
     fn ipc_path() -> PathBuf {
         let tmp = env::var("XDG_RUNTIME_DIR")
             .or_else(|_| env::var("TMPDIR"))
@@ -48,3 +43,10 @@ impl Connection for UnixConnection {
         &mut self.socket
     }
 }
+
+impl Drop for UnixConnection {
+    fn drop(&mut self) {
+        self.socket.shutdown(Shutdown::Both)
+            .expect("Failed to properly shut down socket");
+    }
+}

src/connection/windows.rs

@@ -23,10 +23,6 @@ impl Connection for WindowsConnection {
         Ok(Self { socket })
     }
 
-    fn disconnect(&self) -> Result<()> {
-        Ok(())
-    }
-
     fn ipc_path() -> PathBuf {
         PathBuf::from(r"\\.\pipe\")
     }