Remove epsilon from script configs

[danbraunai-apollo]

Remove epsilon from script configs

Description

• Remove eps from lm_rib_build and lm_ablation configs, and the resulting downstream changes
• Fix path to Cs_pythia in launch.json (not related but forgot to do this in last PR, sorry)
• Delete the residual configs for building modadd graphs with layernorm

Related Issue

Closes #224

Motivation and Context

We previously allowed the user to set the layer norm epsilon in the build script. This was for debugging the relationship between epsilon and the n_intervals in the integrad. This is no longer needed.

Does this PR introduce a breaking change?

Yes. Some people may have had with an "eps" set in their rib build and/or ablation configs. They will need to delete these. Easy and obvious fix.

[nix-apollo]

Looks good from a quick glance