[gnome-text-editor] prefs: remove unused variable

[Christian Hergert <chergert src gnome org>]

commit 7d9b652976a33aee9cfdf5e102a7641e7b86c1e1
Author: Christian Hergert <chergert redhat com>
Date:   Mon Feb 7 14:38:52 2022 -0800

    prefs: remove unused variable

 src/editor-preferences-dialog.c | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/src/editor-preferences-dialog.c b/src/editor-preferences-dialog.c
index cda3d49..b58ddb4 100644
--- a/src/editor-preferences-dialog.c
+++ b/src/editor-preferences-dialog.c
@@ -460,7 +460,6 @@ editor_preferences_dialog_drop_scheme_cb (EditorPreferencesDialog *self,
     {
       GSList *list = g_value_get_boxed (value);
       g_autoptr(GPtrArray) to_install = NULL;
-      g_autoptr(GTask) task = NULL;
       GtkSourceStyleSchemeManager *manager;
       const char * const *scheme_ids;