Script: patch_shpc_pawsey_modules.sh is being called twice

[AlexisEspinosaGayosso]

Script: "patch_shpc_pawsey_modules.sh" is being called twice:

1. From parent script: "install_shpc_containers.sh" (final line)
2. From parent script: "post_installation_operations.sh" (final line)

We need to decide from where to call it (one or the other). Personally, I prefer to call it from the 1st parent script, as this makes a bit more clear what are the steps performed for the shpc containers. But I will leave the decision to the repo maintainers, as 2nd parent script may have been designed to perform these kinds of operations.