bindings: don't link to libges four times
bindings: don't link to libges four times

And even less different versions of it.

pitivi/gst-editing-services,cfoch/ges,volodymyrrudyi/gst-editing-services,volodymyrrudyi/gst-editing-services,cfoch/gst-editing-services,pitivi/gst-editing-services,cfoch/ges,cfoch/ges,pitivi/gst-editing-services,cfoch/gst-editing-services,cfoch/gst-editing-services,volodymyrrudyi/gst-editing-services,cfoch/ges,cfoch/gst-editing-services,pitivi/gst-editing-services