Remove accidentally commented-out Group logic
Remove accidentally commented-out Group logic

Fixes: CNVS-35246

I introduced this bug when fixing CNVS-34740 by
commenting out some logic so I could see the search
input while working on the layout. The commented-out
logic was committed; this commit reinstates it.

Test plan:
- Go to [any course] > People > + Group Set
- Cancel out of the modal
- The search input for Search Groups should now only
  show if `groupsAreSearchable` is true

Change-Id: I63ddb564b44fc7f22cdda4388e1a2fff7cfa6543
Reviewed-on: https://gerrit.instructure.com/103321
Tested-by: Jenkins
Reviewed-by: Colleen Palmer <387ba1943871e60965e6b44638a2f2e1ab9b8469@instructure.com>
Product-Review: Colleen Palmer <387ba1943871e60965e6b44638a2f2e1ab9b8469@instructure.com>
QA-Review: Chris Hart <b82b40b84a2f06957ec9caf1768340bd6b929cc4@instructure.com>
QA-Review: Dan Sasaki

venturehive/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,djbender/canvas-lms,instructure/canvas-lms,instructure/canvas-lms