[gnome-session] Fix use of uninitialised variable in get_session_keyfile_if_valid()

[Ray Strode <halfline src gnome org>]

commit 4bb8872e57f1fbf2beece71197303ad4b2975d68
Author: Tomas Popela <tpopela redhat com>
Date:   Thu Jun 29 14:26:52 2017 +0200

    Fix use of uninitialised variable in get_session_keyfile_if_valid()
    
    The length variable is not set before it's used. Remove the check
    for it as it's not needed.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=784339

 gnome-session/gsm-session-fill.c |   19 ++++++++-----------
 1 files changed, 8 insertions(+), 11 deletions(-)
---
diff --git a/gnome-session/gsm-session-fill.c b/gnome-session/gsm-session-fill.c
index bcd9205..af203bb 100644
--- a/gnome-session/gsm-session-fill.c
+++ b/gnome-session/gsm-session-fill.c
@@ -175,17 +175,14 @@ get_session_keyfile_if_valid (const char *path)
                 goto error;
         }
 
-        /* check that we do have some required components */
-        if (len == 0) {
-                list = g_key_file_get_string_list (keyfile,
-                                                   GSM_KEYFILE_SESSION_GROUP,
-                                                   GSM_KEYFILE_REQUIRED_COMPONENTS_KEY,
-                                                   &len, NULL);
-                if (list)
-                        g_strfreev (list);
-                if (len == 0)
-                        g_warning ("Session '%s': no component in the session.", path);
-        }
+        list = g_key_file_get_string_list (keyfile,
+                                           GSM_KEYFILE_SESSION_GROUP,
+                                           GSM_KEYFILE_REQUIRED_COMPONENTS_KEY,
+                                           &len, NULL);
+        if (list)
+                g_strfreev (list);
+        if (len == 0)
+                g_warning ("Session '%s': no component in the session.", path);
 
         return keyfile;