Apply fixes from StyleCI (#2)

Author: mpociot

src/Server.php

@@ -9,7 +9,6 @@
 use React\Socket\ConnectionInterface;
 use React\Socket\Server as SocketServer;
 use Symfony\Component\Console\Output\BufferedOutput;
-use Symfony\Component\Console\Output\OutputInterface;
 use BeyondCode\LaravelTinkerServer\Shell\ExecutionClosure;
 
 class Server

tests/fixtures/EchoStream.php

@@ -2,7 +2,6 @@
 
 class EchoStream implements \React\Stream\WritableStreamInterface
 {
-
     public function on($event, callable $listener)
     {
         // TODO: Implement on() method.
@@ -37,6 +36,7 @@ public function isWritable()
     {
         return true;
     }
+
     public function write($data)
     {
         echo $data;
@@ -46,8 +46,9 @@ public function end($data = null)
     {
         // TODO: Implement end() method.
     }
+
     public function close()
     {
         // TODO: Implement close() method.
     }
-}
+}