secret: Don't check the output of virGetUserConfigDirectory()

virGetUserConfigDirectory() *never* *ever* returns NULL, making the
checks for it completely unnecessary.
Signed-off-by: NFabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

src/secret/secret_driver.c

@@ -475,8 +475,7 @@ secretStateInitialize(bool privileged,
         g_autofree char *rundir = NULL;
         g_autofree char *cfgdir = NULL;
 
-        if (!(cfgdir = virGetUserConfigDirectory()))
-            goto error;
+        cfgdir = virGetUserConfigDirectory();
         driver->configDir = g_strdup_printf("%s/secrets/", cfgdir);
 
         if (!(rundir = virGetUserRuntimeDirectory()))