[camera_annotate] removing diffreport table info

[melpetera]

Hi there,

As discussed in a W4M coreteam meeting a few weeks ago, we suggested to remove the diffreport part of the camera_annotate tool that generates additionnal columns in variableMetadata (and additional table files) for various reasons (such as consistency with module goal to cite only one).

So here comes the issue! Note that the module should still generate a variableMetadata file of course, with the pcgroup, adducts, isotopes columns. And EIC plots when needed.

Have a nice day everyone.
Mélanie