Remove unused variable.
diff --git a/src/utils/efd_win.inc b/src/utils/efd_win.inc
index b6b4b55..b8818df 100644
--- a/src/utils/efd_win.inc
+++ b/src/utils/efd_win.inc
@@ -42,7 +42,6 @@
     int one;
     BOOL nodelay;
     u_long nonblock;
-    int i;
 
     /*  Unfortunately, on Windows the only way to send signal to a file
         descriptor (SOCKET) is to create a full-blown TCP connecting on top of