Remove the download of yq as it is not used anymore in v5.x

[crunchyheath]

Checklist:

• [X] Have you added an explanation of what your changes do and why you'd like them to be included?
• [ ] Have you updated or added documentation for the change, as applicable?
• [ ] Have you tested your changes on all related environments with successful results, as applicable?

Type of Changes:

• [X] 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 change)

What is the current behavior? (link to any open issues here) Currently install-deps.sh pulls down the yq binary which is no longer used.

What is the new behavior (if this is a feature change)? It no longer pulls down the yq binary.

Other information: