[PATCH BlueZ] gatt: Fix scan-build warnings

From: Luiz Augusto von Dentz <redacted>

This fixes the following warnings:

src/gatt-database.c:3541:14: warning: Value stored to 'iface' during
its initialization is never read [deadcode.DeadStores]
        const char *iface = g_dbus_proxy_get_interface(proxy);
                    ^~~~~   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/gatt-database.c:3542:14: warning: Value stored to 'path' during
its initialization is never read [deadcode.DeadStores]
        const char *path = g_dbus_proxy_get_path(proxy);
                    ^~~~   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
---
 src/gatt-database.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/gatt-database.c b/src/gatt-database.c
index a212dfc4e694..c72f4a4d5c54 100644
--- a/src/gatt-database.c
+++ b/src/gatt-database.c

@@ -3538,8 +3538,8 @@ static void register_characteristic(void *data, void *user_data)
 {
 	struct gatt_app *app = user_data;
 	GDBusProxy *proxy = data;
-	const char *iface = g_dbus_proxy_get_interface(proxy);
-	const char *path = g_dbus_proxy_get_path(proxy);
+	const char *iface;
+	const char *path;
 
 	if (app->failed)
 		return;

-- 
2.37.3