gh-1024: Remove from imports

[paddyroddy]

Description

Remove from imports. This is helpful for debugging as I got thrown off by thinking cltovar came from GLASS rather than transformcl.

Closes: #1024

Checks

• Is your code passing linting?
• Is your code passing tests?
• Have you added additional tests (if required)?
• Have you modified/extended the documentation (if required)?
• Have you added a one-liner changelog entry above (if required)?

[paddyroddy]

This is noise

Performance has regressed:
	test_gaussian_phz[numpy] (0001_240a8b3) - Field 'mean' has failed PercentageRegressionCheck: 8.135114566 > 5.000000000

[connoraird]

🚀