build-sys: take autotools in use again

This will revert change at Oct 2002 when autotools support was
removed.

Unlike before the package developers are expected to use
./autogen.sh to generate ./configure script, and run make after
that. The build system is also able to create, with make dist, a
tar ball release which compiles correctly, and has files which
seemed to be important to have.

The patch removes few unnecessary files, but no everything. Files
procps.lsm and procps.spec in git repository are useless as is,
but I left them lying around for someone who can make more
justified call about removal of them.

Last, but not least package version number is set 3.3.0 to
distinct this procps from the sourceforge's upstream procps.
Please notice that libproc relese is kept as 3.2.8.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>

proc/readproc.c

@@ -6,9 +6,7 @@
  * May be distributed under the conditions of the
  * GNU Library General Public License; a copy is in COPYING
  */
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
+
 #include "version.h"
 #include "readproc.h"
 #include "alloc.h"