small modification to plotting files to stop jet plots overlapping

Before

https://vp.nnpdf.science/lmZyQxmLTJyWjZkDPh25bw==

After

https://vp.nnpdf.science/qdPgpt-cQSy3mXQJ06keYg==

I also removed PLOTTING_ATLASR06JETS36PB.yaml because it doesn't appear to have a corresponding DATA_* file. I didn't plot the before and after for this because the fk table isn't in either theory 52 or 53

closes #599 (closed)

fix overlap normalised jet plots

small modification to plotting files to stop jet plots overlapping

Before

After

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