Remove the local-docker-compose-environment lock from Jenkins

[adrianclay]

Why

Each build in Jenkins is run on its own EC2 instance, therefore any docker commands will only affect that EC2 instance.

The current global local-docker-compose-environment lock is preventing concurrency across EC2 instances.

This lock would only make sense if builds were being performed on the same Docker daemon.

Type of change

Internal change (non-breaking change with no effect on the functionality affecting end users)

Checklist:

• I have performed a self-review of my code
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have updated the Changelog with details of my change in the UNRELEASED section if this change will affect end users