Single use of `_(...)` in GstTranscodeBin

Is this use of _(...) at [1] intentional or a leftover?

If it's a leftover then [2] can be removed too.

[1] https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/blob/master/gst/transcode/gsttranscodebin.c#L159

[2] https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/blob/master/gst/transcode/gsttranscodebin.c#L26