[console] general: fix some clang build issues

[Zander Brown <zbrown src gnome org>]

commit 0e29a417d52e27da62f5cac461400be6a764dc65
Author: Zander Brown <zbrown gnome org>
Date:   Wed May 18 23:25:38 2022 +0100

    general: fix some clang build issues

 nautilus/kgx-nautilus.c | 1 -
 src/kgx-pages.c         | 2 +-
 src/kgx-window.c        | 7 +++----
 3 files changed, 4 insertions(+), 6 deletions(-)
---
diff --git a/nautilus/kgx-nautilus.c b/nautilus/kgx-nautilus.c
index 2eb8eab..bb22bc9 100644
--- a/nautilus/kgx-nautilus.c
+++ b/nautilus/kgx-nautilus.c
@@ -51,7 +51,6 @@ get_items (KgxNautilus      *self,
            gboolean          is_back)
 {
   g_autoptr (GFile) file = NULL;
-  g_autofree char *path = NULL;
   GList *items = NULL;
   NautilusMenuItem *item;
 
diff --git a/src/kgx-pages.c b/src/kgx-pages.c
index 4084efd..da7db1e 100644
--- a/src/kgx-pages.c
+++ b/src/kgx-pages.c
@@ -854,7 +854,7 @@ kgx_pages_get_children (KgxPages *self)
   GPtrArray *children;
   guint n;
 
-  g_return_val_if_fail (KGX_IS_PAGES (self), KGX_NONE);
+  g_return_val_if_fail (KGX_IS_PAGES (self), NULL);
 
   priv = kgx_pages_get_instance_private (self);
 
diff --git a/src/kgx-window.c b/src/kgx-window.c
index 3bc1d0c..d8fe17a 100644
--- a/src/kgx-window.c
+++ b/src/kgx-window.c
@@ -82,10 +82,9 @@ zoomed (GObject *object, GParamSpec *pspec, gpointer data)
 static void
 kgx_window_constructed (GObject *object)
 {
-  KgxWindow          *self = KGX_WINDOW (object);
-  g_autoptr (GError)  error = NULL;
-  GtkApplication     *application = NULL;
-  HdyStyleManager    *style_manager;
+  KgxWindow       *self = KGX_WINDOW (object);
+  GtkApplication  *application = NULL;
+  HdyStyleManager *style_manager;
 
   G_OBJECT_CLASS (kgx_window_parent_class)->constructed (object);