refactor: remove redudant signaling channels

Author: Marcos

server/stdio.go

@@ -191,22 +191,20 @@ func (s *StdioServer) processInputStream(ctx context.Context, reader *bufio.Read
 func (s *StdioServer) readNextLine(ctx context.Context, reader *bufio.Reader) (string, error) {
 	readChan := make(chan string, 1)
 	errChan := make(chan error, 1)
-	done := make(chan struct{})
-	defer close(done)
 
 	go func() {
+		select {
+		case <-ctx.Done():
+			return
+		default:
+		}
 		line, err := reader.ReadString('\n')
 		if err != nil {
-			select {
-			case errChan <- err:
-			case <-done:
-			}
+			errChan <- err
 			return
 		}
-		select {
-		case readChan <- line:
-		case <-done:
-		}
+
+		readChan <- line
 	}()
 
 	select {