Remove obsolete scriptlets

References: https://fedoraproject.org/wiki/Changes/RemoveObsoleteScriptlets
Signed-off-by: Igor Gnatenko <ignatenkobrain@fedoraproject.org>

screen.spec

@@ -8,8 +8,6 @@ Release:        7%{?dist}
 License:        GPLv3+
 URL:            http://www.gnu.org/software/screen
 Requires(pre):  /usr/sbin/groupadd
-Requires(preun): /sbin/install-info
-Requires(post): /sbin/install-info
 BuildRequires:  ncurses-devel pam-devel libutempter-devel autoconf texinfo
 BuildRequires:  automake gcc
 # for %%_tmpfilesdir macro
@@ -101,16 +99,6 @@ rm -f $RPM_BUILD_ROOT%{_infodir}/dir
 /usr/sbin/groupadd -g 84 -r -f screen
 :
 
-%post
-/sbin/install-info %{_infodir}/screen.info.gz %{_infodir}/dir --entry="* screen: (screen).				Terminal multiplexer." &> /dev/null
-:
-
-%preun
-if [ $1 = 0 ]; then
-	/sbin/install-info --delete %{_infodir}/screen.info.gz %{_infodir}/dir --entry="* screen: (screen).				Terminal multiplexer." &> /dev/null
-fi
-:
-
 %files
 %doc README doc/FAQ doc/README.DOTSCREEN ChangeLog
 %license COPYING