Drop all attempts to 'fix' #1490632, revert to same as 6.1-1

Every attempt to 'fix' #1490632 had some kind of problem, and
Neil eventually left the spec in a broken state (as of 6.1-2).
Release engineering untagged 6.1-2 to stop it breaking Rawhide
composes, but then the package got bumped to 6.1-3 and rebuilt
in the broken state as part of the F28 mass rebuild.

We can't really keep doing this dance, so since Neil hasn't
indicated a further preference, I'm just reverting the package
to the state it was in before I filed #1490632 for now. This is
less of a problem than having it break composes. It's also at
least a 'clean' state (no patches against upstream).

rng-tools.spec

@@ -4,15 +4,13 @@
 Summary:        Random number generator related utilities
 Name:           rng-tools
 Version:        6.1
-Release:        3%{?dist}
+Release:        4%{?dist}
 Group:          System Environment/Base
 License:        GPLv2+
 URL:            https://github.com/nhorman/rng-tools
 Source0:        https://github.com/nhorman/rng-tools/archive/rng-tools-%{version}.tar.gz
 Source1:        rngd.service
 
-Patch0:		rngd-exit-code-for-list.patch
-
 # https://sourceforge.net/p/gkernel/patches/111/
 
 BuildRequires:  gettext
@@ -48,18 +46,6 @@ install -Dt %{buildroot}%{_unitdir} -m0644 %{SOURCE1}
 %post
 %systemd_post rngd.service
 
-# Check to ensure there is at least one entropy source
-# If there are none, disable the service
-/usr/sbin/rngd --list -f > /dev/null 2>&1
-if [ $? -eq 0 ]
-then
-systemctl --no-reload enable --now rngd.service > /dev/null 2>&1
-else
-#Disable the service if there is no entropy source
-systemctl --no-reload disable --now rngd.service > /dev/null 2>&1
-fi
-
-
 %preun
 %systemd_preun rngd.service
 
@@ -77,6 +63,9 @@ fi
 %attr(0644,root,root)   %{_unitdir}/rngd.service
 
 %changelog
+* Thu Feb 15 2018 Adam Williamson <awilliam@redhat.com> - 6.1-4
+- Drop all attempts to 'fix' #1490632, revert spec to same as 6.1-1
+
 * Fri Feb 09 2018 Fedora Release Engineering <releng@fedoraproject.org> - 6.1-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild