No need to run update-desktop-database (and require desktop-file-utils)

https://fedoraproject.org/wiki/Packaging:ScriptletSnippets#desktop-database

hplip.spec

@@ -7,7 +7,7 @@
 Summary: HP Linux Imaging and Printing Project
 Name: hplip
 Version: 3.12.11
-Release: 6%{?dist}
+Release: 7%{?dist}
 License: GPLv2+ and MIT
 Group: System Environment/Daemons
 
@@ -68,7 +68,6 @@ BuildRequires: net-snmp-devel
 BuildRequires: cups-devel
 BuildRequires: python2-devel
 BuildRequires: libjpeg-devel
-BuildRequires: desktop-file-utils
 BuildRequires: libusb1-devel
 BuildRequires: openssl-devel
 BuildRequires: sane-backends-devel
@@ -108,8 +107,6 @@ License: BSD
 Requires: PyQt4
 Requires: python-reportlab
 Requires: pygobject2
-Requires(post): desktop-file-utils >= 0.2.92
-Requires(postun): desktop-file-utils >= 0.2.92
 Requires: %{name}%{?_isa} = %{version}-%{release}
 Requires: libsane-hpaio%{?_isa} = %{version}-%{release}
 
@@ -524,12 +521,6 @@ rm -f %{buildroot}%{_sysconfdir}/xdg/autostart/hplip-systray.desktop
 %{_libdir}/sane/libsane-*.so*
 %config(noreplace) %{_sysconfdir}/sane.d/dll.d/hpaio
 
-%post gui
-/usr/bin/update-desktop-database &>/dev/null ||:
-
-%postun gui
-/usr/bin/update-desktop-database &>/dev/null ||:
-
 %post -n hpijs
 %{_bindir}/hpcups-update-ppds &>/dev/null ||:
 
@@ -538,6 +529,10 @@ rm -f %{buildroot}%{_sysconfdir}/xdg/autostart/hplip-systray.desktop
 %postun libs -p /sbin/ldconfig
 
 %changelog
+* Tue Jan 22 2013 Jiri Popelka <jpopelka@redhat.com> - 3.12.11-7
+- No need to run update-desktop-database (and require desktop-file-utils)
+  because there are no MimeKey lines in the desktop files.
+
 * Fri Jan 18 2013 Adam Tkac <atkac redhat com> - 3.12.11-6
 - rebuild due to "jpeg8-ABI" feature drop