libspl: include: remove [util/]sscanf.h

Unused, empty, installs in a weird location

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316

configure.ac

@@ -155,7 +155,6 @@ AC_CONFIG_FILES([
 	lib/libspl/include/rpc/Makefile
 	lib/libspl/include/sys/Makefile
 	lib/libspl/include/sys/dktp/Makefile
-	lib/libspl/include/util/Makefile
 	lib/libtpool/Makefile
 	lib/libunicode/Makefile
 	lib/libuutil/Makefile

lib/libspl/include/Makefile.am

@@ -1,4 +1,4 @@
-SUBDIRS = rpc sys util os
+SUBDIRS = rpc sys os
 
 libspldir = $(includedir)/libspl
 libspl_HEADERS = \

lib/libspl/include/util/Makefile.am

@@ -1,3 +0,0 @@
-libspldir = $(includedir)/libspl
-libspl_HEADERS = \
-	sscanf.h

lib/libspl/include/util/sscanf.h

@@ -1,30 +0,0 @@
-/*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License, Version 1.0 only
- * (the "License").  You may not use this file except in compliance
- * with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- */
-/*
- * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
- * Use is subject to license terms.
- */
-
-#ifndef _LIBSPL_UTIL_SSCANF_H
-#define	_LIBSPL_UTIL_SSCANF_H
-
-#endif