[gnome-builder] clang: remove unused variable

[Christian Hergert <chergert src gnome org>]

commit 132fafae4b46a99bf9e6c1b4445fed817a218b45
Author: Christian Hergert <chergert redhat com>
Date:   Wed Nov 22 21:35:16 2017 -0800

    clang: remove unused variable

 src/plugins/clang/ide-clang-translation-unit.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/src/plugins/clang/ide-clang-translation-unit.c b/src/plugins/clang/ide-clang-translation-unit.c
index 6dc1bd0..10809a9 100644
--- a/src/plugins/clang/ide-clang-translation-unit.c
+++ b/src/plugins/clang/ide-clang-translation-unit.c
@@ -889,7 +889,6 @@ ide_clang_translation_unit_lookup_symbol (IdeClangTranslationUnit  *self,
                                           IdeSourceLocation        *location,
                                           GError                  **error)
 {
-  g_autofree gchar *filename = NULL;
   g_autofree gchar *workpath = NULL;
   g_auto(CXString) cxstr = { 0 };
   g_autoptr(IdeSourceLocation) declaration = NULL;