Depend on process launcher to set child process environment

[mvz]

Summary

Depend on process launcher to set child process environment

Details

This change removes a needless #with_environment call when spawning a process. Setting the local environment at this point no effect since we already set the environment by configuring the child process launcher.

Motivation and Context

Cleaning up a needless complication in preparation for switching to Process.spawn.

How Has This Been Tested?

Specs and cukes were run and there was no regression.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Internal change (refactoring, test improvements, developer experience or update of dependencies)

Checklist:

• I've added tests for my code
• My change requires a change to the documentation.
• I have updated the documentation accordingly.