gfio: kill debug printf()

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/gfio.c b/gfio.c
index 89fc3bf..d1cf346 100644
--- a/gfio.c
+++ b/gfio.c
@@ -1356,7 +1356,6 @@
 	G = g * 255;
 	B = b * 255;
 	sprintf(tmp, "#%02x%02x%02x", R, G, B);
-	printf("%s\n", tmp);
 	gdk_color_parse(tmp, c);
 }