Revert "spec: require libvirt-wireshark from libvirt metapackage"

This reverts commit 8d6c3659.

After further list discussion, it was decided that pulling in
wireshark as a dependency is a bit too much for the base 'libvirt'
package.  Remember also that 'libvirt-devel' is also not pulled in
by the base 'libvirt' - the metapackage exists for full
functionality of libvirtd, rather than to pull in all subpackages.

libvirt.spec.in

@@ -428,9 +428,6 @@ Requires: libvirt-daemon-driver-storage = %{version}-%{release}
 Requires: libvirt-daemon-driver-network = %{version}-%{release}
 Requires: libvirt-daemon-driver-nodedev = %{version}-%{release}
     %endif
-    %if %{with_wireshark}
-Requires: libvirt-wireshark = %{version}-%{release}
-    %endif
 %endif
 Requires: libvirt-client = %{version}-%{release}