d3drm/tests: Fix a leak in tests (Valgrind).

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>

dlls/d3drm/tests/d3drm.c

@@ -1504,6 +1504,8 @@ static void test_destroy_callback(unsigned int test_idx, REFCLSID clsid, REFIID
                 "Expected callback = %p, context = %p. Got callback = %p, context = %p.\n", d3drm_corder[i].callback,
                 d3drm_corder[i].context, corder[i].callback, corder[i].context);
     }
+
+    IDirect3DRM_Release(d3drm);
 }
 
 static void test_object(void)