spec: we don't need to depend on qemu-kvm

Similarly as in commit 95cda553, just remove the dependency on qemu-kvm
package for RHEL builds.  We don't need it, becase libvirt-daemon-kvm
will handle this dependency correctly for us even in case that only
qemu-kvm-rhev is present.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1046651

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>

virt-manager.spec.in

@@ -12,7 +12,6 @@
 
 %if 0%{?rhel}
 %define preferred_distros          "rhel,fedora"
-%define kvm_packages               "qemu-kvm"
 %define stable_defaults            1
 %endif