[gnome-builder] project-tree: remove unused variable

[Christian Hergert <chergert src gnome org>]

commit 0d4c228021a0c561858a18e2555ff3d22d4e8055
Author: Christian Hergert <chergert redhat com>
Date:   Thu Feb 28 10:06:18 2019 -0800

    project-tree: remove unused variable

 src/plugins/project-tree/gbp-project-tree-addin.c | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/src/plugins/project-tree/gbp-project-tree-addin.c 
b/src/plugins/project-tree/gbp-project-tree-addin.c
index fe9da3642..8b8ded9ec 100644
--- a/src/plugins/project-tree/gbp-project-tree-addin.c
+++ b/src/plugins/project-tree/gbp-project-tree-addin.c
@@ -188,7 +188,6 @@ gbp_project_tree_addin_build_children_async (IdeTreeAddin        *addin,
     {
       IdeContext *context = ide_tree_node_get_item (node);
       g_autoptr(IdeTreeNode) files = NULL;
-      g_autoptr(IdeTreeNode) targets = NULL;
       g_autoptr(IdeProjectFile) root_file = NULL;
       g_autoptr(GFile) workdir = ide_context_ref_workdir (context);
       g_autoptr(GFile) parent = g_file_get_parent (workdir);