qemu_command: move websocket code into else part for address listen

There is no need to check again for vnc socket.
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

src/qemu/qemu_command.c

@@ -7257,17 +7257,16 @@ qemuBuildGraphicsVNCCommandLine(virQEMUDriverConfigPtr cfg,
         }
         virBufferAsprintf(&opt, ":%d",
                           graphics->data.vnc.port - 5900);
-    }
 
-    if (!graphics->data.vnc.socket &&
-        graphics->data.vnc.websocket) {
-        if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VNC_WEBSOCKET)) {
-            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-                           _("VNC WebSockets are not supported "
-                             "with this QEMU binary"));
-            goto error;
+        if (graphics->data.vnc.websocket) {
+            if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VNC_WEBSOCKET)) {
+                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                               _("VNC WebSockets are not supported "
+                                 "with this QEMU binary"));
+                goto error;
+            }
+            virBufferAsprintf(&opt, ",websocket=%d", graphics->data.vnc.websocket);
         }
-        virBufferAsprintf(&opt, ",websocket=%d", graphics->data.vnc.websocket);
     }
 
     if (graphics->data.vnc.sharePolicy) {