cleanup, Remove duplicated code

These two blocks of code are exactly the same, remove one.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/cpus.c b/cpus.c
index b421a71..2dae549 100644
--- a/cpus.c
+++ b/cpus.c
@@ -565,14 +565,6 @@
         fprintf(stderr, "kvm_set_signal_mask: %s\n", strerror(-r));
         exit(1);
     }
-
-    sigdelset(&set, SIG_IPI);
-    sigdelset(&set, SIGBUS);
-    r = kvm_set_signal_mask(env, &set);
-    if (r) {
-        fprintf(stderr, "kvm_set_signal_mask: %s\n", strerror(-r));
-        exit(1);
-    }
 }
 
 static void qemu_tcg_init_cpu_signals(void)