Removed migration file causing an error on Heroku
Removed migration file causing an error on Heroku

mkoon/gradecraft-development,peterkshultz/gradecraft-development,zqian/gradecraft-development,UM-USElab/gradecraft-development,mkoon/gradecraft-development,UM-USElab/gradecraft-development,peterkshultz/gradecraft-development,zqian/gradecraft-development,UM-USElab/GradeCraft,UM-USElab/gradecraft-development,UM-USElab/GradeCraft,peterkshultz/gradecraft-development,zqian/gradecraft-development,UM-USElab/gradecraft-development,mkoon/gradecraft-development