Revert "After merge, moving back"

This reverts commit 3351b060c95892322532b0b1f96fe719a7935fb4.
Revert "Branch commit sync test"

This reverts commit 8a9e762c2e9b63ebaac2209da53d874378f161fb.
Revert "Update exerciseController.js"

This reverts commit 10c8822039bd7303f0fd61175811b97369f31e58.