[mutter] monitor-config: Use existing key_is_laptop

[Jasper St. Pierre <jstpierre src gnome org>]

commit 9d2cd8ff877b0f8828841d41cc12aa8ce0919084
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Mon Dec 29 16:41:13 2014 -0800

    monitor-config: Use existing key_is_laptop
    
    We already have this code elsewhere.

 src/backends/meta-monitor-config.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/src/backends/meta-monitor-config.c b/src/backends/meta-monitor-config.c
index 5141bd6..0b19559 100644
--- a/src/backends/meta-monitor-config.c
+++ b/src/backends/meta-monitor-config.c
@@ -956,8 +956,7 @@ make_laptop_lid_config (MetaConfiguration  *reference)
       new->keys[i].product = g_strdup (current_key->product);
       new->keys[i].serial = g_strdup (current_key->serial);
 
-      if (g_str_has_prefix (current_key->connector, "LVDS") ||
-          g_str_has_prefix (current_key->connector, "eDP"))
+      if (key_is_laptop (current_key))
         {
           new->outputs[i].enabled = FALSE;
           x_after = current_output->rect.x;