don't define a default database URI

src/libimcv/imv/imv_database.c

@@ -303,7 +303,7 @@ METHOD(imv_database_t, get_database, database_t*,
 METHOD(imv_database_t, destroy, void,
 	private_imv_database_t *this)
 {
-	this->db->destroy(this->db);
+	DESTROY_IF(this->db);
 	this->sessions->destroy_offset(this->sessions,
 							offsetof(imv_session_t, destroy));
 	this->mutex->destroy(this->mutex);

src/libimcv/imv/imv_policy_manager.c

@@ -142,9 +142,8 @@ int main(int argc, char *argv[])
 	}
 	session_id = atoi(tnc_session_id);
 	
-	/* attach database */
-	uri = lib->settings->get_str(lib->settings, "imv_policy_manager.database",
-												"sqlite:///etc/pts/config.db");
+	/* attach IMV database */
+	uri = lib->settings->get_str(lib->settings, "libimcv.database", NULL);
 	db = lib->db->create(lib->db, uri);
 	if (!db)
 	{