ciolib_puttext: free() is not reachable

As far as I can tell, this free() in ciolib_puttext() is not reachable
given the current logic in the function; and, the value of buf is not
modified by any called functions.

Also, this function is invoked with stack allocated buffers, so it
isn't safe to assume a free() is valid in this context. Better to let
the owner of the buffer manage the lifecycle.

src/conio/ciolib.c

@@ -1170,13 +1170,10 @@ CIOLIBEXPORT void ciolib_normvideo(void)
  */
 CIOLIBEXPORT int ciolib_puttext(int a,int b,int c,int d,void *e)
 {
-	char	*buf=e;
 	int		ret;
 	CIOLIB_INIT();
 
 	ret = cio_api.puttext(a,b,c,d,(void *)buf);
-	if (buf != e)
-		free(buf);
 	return ret;
 }