block: Drop superfluous conditionals around qemu_opts_del()

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1411999675-14533-1-git-send-email-armbru@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

blockdev.c

diff --git a/blockdev.c b/blockdev.c
index ad43648..2f441c5 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -224,9 +224,7 @@
     if (!dinfo) {
         return;
     }
-    if (dinfo->opts) {
-        qemu_opts_del(dinfo->opts);
-    }
+    qemu_opts_del(dinfo->opts);
     g_free(dinfo->id);
     QTAILQ_REMOVE(&drives, dinfo, next);
     g_free(dinfo->serial);

qemu-img.c

diff --git a/qemu-img.c b/qemu-img.c
index ea4bbae..27b85db 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -1736,9 +1736,7 @@
     qemu_opts_del(opts);
     qemu_opts_free(create_opts);
     qemu_vfree(buf);
-    if (sn_opts) {
-        qemu_opts_del(sn_opts);
-    }
+    qemu_opts_del(sn_opts);
     if (out_bs) {
         bdrv_unref(out_bs);
     }

qemu-nbd.c

diff --git a/qemu-nbd.c b/qemu-nbd.c
index fa60338..b524b34 100644
--- a/qemu-nbd.c
+++ b/qemu-nbd.c
@@ -778,9 +778,7 @@
         unlink(sockpath);
     }
 
-    if (sn_opts) {
-        qemu_opts_del(sn_opts);
-    }
+    qemu_opts_del(sn_opts);
 
     if (device) {
         void *ret;