contrib: Do not generate RPM spec

The RPM spec needs to be maintained manually anyway so it does not make
sense to autogenerate the file with the latest version number. This should
be done manually while updating dependencies and changelog.

contrib/redshift.spec

@@ -1,5 +1,5 @@
 Name: redshift
-Version: @VERSION@
+Version: 1.9.1
 Release: 1%{dist}
 Summary: Adjusts the color temperature of your screen according to time of day
 Group: Applications/System
@@ -37,7 +37,7 @@ Requires: %{name} = %{version}-%{release}
 Obsoletes: gtk-redshift < %{version}-%{release}
 
 %description -n %{name}-gtk
-This package provides GTK integration for Redshift, a screen color 
+This package provides GTK integration for Redshift, a screen color
 temperature adjustment program.
 
 %prep