remove development feature flag for lti collaborations
remove development feature flag for lti collaborations

fixes CNVS-30847

Test Plan:
NA

Change-Id: I3de61c386bef8dd0172ad4c665a6d4e47ad1e9cf
Reviewed-on: https://gerrit.instructure.com/87223
Reviewed-by: Jon Willesen <0321efbc0acf6204eb6035acb1d418838b450d08@instructure.com>
Tested-by: Jenkins
Product-Review: Steven Burnett <a0b450117c5d20a22d5c4d52bb8ae13adee003d8@instructure.com>
QA-Review: Steven Burnett <a0b450117c5d20a22d5c4d52bb8ae13adee003d8@instructure.com>

djbender/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,HotChalk/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,SwinburneOnline/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms,SwinburneOnline/canvas-lms,venturehive/canvas-lms,SwinburneOnline/canvas-lms,HotChalk/canvas-lms,SwinburneOnline/canvas-lms,grahamb/canvas-lms,grahamb/canvas-lms,grahamb/canvas-lms,djbender/canvas-lms,HotChalk/canvas-lms,HotChalk/canvas-lms,venturehive/canvas-lms,djbender/canvas-lms,sfu/canvas-lms