Cleanup - moving patches from YCP killer to upstream

- removed unused autofs_auto.ycp and autofs_proposal.ycp clients (not present in Makefile.am thus not packaged into RPM, removed in 2007 (see commit https://github.com/yast/yast-autofs/commit/7197129c7539d5e8071be0ad593a9719e4d4da43#L10L6), missing in SLE11-SP and openSUSE-12.3)
- updated dialogs.ycp (missing include)
- removed unnecessary BuildRequires (perl-XML-Writer and yast2-testsuite)
- 2.24.0