[sysprof] sysprofd: fix warning

[Christian Hergert <chergert src gnome org>]

commit 6f11fcf5106dfc9ee326b0cbd733569f3578ac3d
Author: Christian Hergert <chergert redhat com>
Date:   Mon Mar 22 14:55:04 2021 -0700

    sysprofd: fix warning

 src/sysprofd/ipc-service-impl.c | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/src/sysprofd/ipc-service-impl.c b/src/sysprofd/ipc-service-impl.c
index 3722908..50825cf 100644
--- a/src/sysprofd/ipc-service-impl.c
+++ b/src/sysprofd/ipc-service-impl.c
@@ -319,7 +319,6 @@ ipc_service_impl_handle_set_governor (IpcService            *service,
                                       GDBusMethodInvocation *invocation,
                                       const gchar           *governor)
 {
-  g_autoptr(GVariant) res = NULL;
   g_autofree gchar *available = NULL;
   g_autofree gchar *previous = NULL;
   gboolean had_error = FALSE;