[glom] Remove unused variable.

[Murray Cumming <murrayc src gnome org>]

commit 9898028bace1aec628e218a6148f92ec71f0052c
Author: Murray Cumming <murrayc murrayc com>
Date:   Mon Mar 7 17:01:34 2016 +0100

    Remove unused variable.

 tests/test_field_file_format.cc |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/tests/test_field_file_format.cc b/tests/test_field_file_format.cc
index c061b0e..8134ee7 100644
--- a/tests/test_field_file_format.cc
+++ b/tests/test_field_file_format.cc
@@ -39,7 +39,6 @@ static bool test_value(Glom::Field::glom_field_type field_type, const Gnome::Gda
 
   if(value != value_retrieved)
   {
-    auto field = std::make_shared<Glom::Field>();
     std::cerr << "  value_retrieved type=" << g_type_name(value_retrieved.get_value_type()) << ", value 
type=" << g_type_name(value.get_value_type()) << std::endl;
     return false;
   }