char: rename qemu_chr_close() -> qemu_chr_delete()

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/usb-redir.c b/usb-redir.c
index 84fa020..c74b156 100644
--- a/usb-redir.c
+++ b/usb-redir.c
@@ -837,7 +837,7 @@
 {
     USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev);
 
-    qemu_chr_close(dev->cs);
+    qemu_chr_delete(dev->cs);
     /* Note must be done after qemu_chr_close, as that causes a close event */
     qemu_bh_delete(dev->open_close_bh);