[libgda] GdaSqliteMeta: Fix memory leak of unused value

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit fcac4c2f9e6d13674489f5a8744bd0d97e5f7bce
Author: Daniel Espinosa <esodan gmail com>
Date:   Wed Apr 24 13:49:14 2019 -0500

    GdaSqliteMeta: Fix memory leak of unused value

 libgda/sqlite/gda-sqlite-meta.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/libgda/sqlite/gda-sqlite-meta.c b/libgda/sqlite/gda-sqlite-meta.c
index 870dd6279..c419f3aa6 100644
--- a/libgda/sqlite/gda-sqlite-meta.c
+++ b/libgda/sqlite/gda-sqlite-meta.c
@@ -1616,7 +1616,8 @@ fill_constraints_ref_model (GdaConnection *cnc, G_GNUC_UNUSED SqliteConnectionDa
                }
                if ((fkid  == -1) || (fkid != g_value_get_int (cvalue))) {
                        gchar *constname;
-                       GValue *v2, *v3, *v4, *v5 = NULL;
+                       //GValue *v2;
+      GValue *v3, *v4, *v5 = NULL;
                        const GValue *cv6, *cv7;
 
                        fkid = g_value_get_int (cvalue);
@@ -1635,7 +1636,7 @@ fill_constraints_ref_model (GdaConnection *cnc, G_GNUC_UNUSED SqliteConnectionDa
                                continue;
                        }
                
-                       g_value_set_string ((v2 = gda_value_new (G_TYPE_STRING)), "FOREIGN KEY");
+                       //g_value_set_string ((v2 = gda_value_new (G_TYPE_STRING)), "FOREIGN KEY");
                        g_value_set_string ((v3 = gda_value_new (G_TYPE_STRING)), g_value_get_string 
(cvalue));
                        g_value_set_string ((v4 = gda_value_new (G_TYPE_STRING)), "primary_key");
                        if (!constraint_name_n)