Remove obsolete scriptlets

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

mathgl.spec

@@ -517,25 +517,6 @@ desktop-file-validate %{buildroot}%{_datadir}/applications/mgllab.desktop
 
 %ldconfig_scriptlets wx
 
-%post common
-%if 0%{?with_doc}
-/sbin/install-info %{_infodir}/%{name}_en.info %{_infodir}/dir || :
-%endif
-touch --no-create %{_datadir}/mime ||:
-
-%postun common
-if [ $1 -eq 0 ] ; then
-update-desktop-database -q &> /dev/null
-touch --no-create %{_datadir}/mime ||:
-fi
-
-%preun common
-%if 0%{?with_doc}
-if [ $1 = 0 ] ; then
-    /sbin/install-info --delete %{_infodir}/%{name}_en.info %{_infodir}/dir || :
-fi
-%endif
-
 %if 0%{?with_octave}
 %post -n octave-mathgl
 %octave_cmd pkg rebuild