images that are saved 10 times, how to clean ?

Hi everyone,
I use an add-on to convert BI Materials into Cycles one, and it seems to create many version of one image : image.jpg, image1.jpg.001, image1.jpg.002, etc…
It’s ok as long as I don’t pack the external datas, but when sending it over the net, I need to pack them, and then it saves really 10 time the exact same image.
Is there a way to replace all those .001, .002, etc… with the original one to get only one image per system path ?