Remove glql_work_items feature flag (always on)

Asherah Connorrequested to merge
push-npmuwrvptquo into main

What does this MR do and why?

Removes the glql_work_items FF, making it always on.

Remove glql_work_items feature flag (always on) (gitlab!225241 - merged) removes the FF in the Rails side. For now I'm hard-coding the FF passed to GLQL from there as true, but after this (or a similar) MR lands, we can remove it entirely.

Per the spirit of this codebase, this change is 80% LLM-written. I've checked it reasonably carefully but it does not have my usual seal of approval.

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