kvm: Drop redundant kvm_enabled from cpu_thread_is_idle

This is now implied by kvm_irqchip_in_kernel.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

cpus.c

@@ -441,8 +441,7 @@ static bool cpu_thread_is_idle(CPUArchState *env)
     if (env->stopped || !runstate_is_running()) {
         return true;
     }
-    if (!env->halted || qemu_cpu_has_work(env) ||
-        (kvm_enabled() && kvm_irqchip_in_kernel())) {
+    if (!env->halted || qemu_cpu_has_work(env) || kvm_irqchip_in_kernel()) {
         return false;
     }
     return true;