Revert "Fix db migration error in local storage"
Revert "Fix db migration error in local storage"

This reverts commit 5f7e599a1df87dd2271f2f82969ef93930d00956.

The SFU MOD is no longer needed because Instructure fixed it in
af7ab9af60a21b0bc40093635a76cbf7dce55155.

grahamb/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms,grahamb/canvas-lms,grahamb/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms