Revert "Working on #62. Implemented ng-model for code challenges."
Revert "Working on #62. Implemented ng-model for code challenges."

This reverts commit 6e6c37339d176a60c269d6f4d1e1e1c7357b8275.

singpath/classmentors,singpath/classmentors,shiquan-lim/classmentors,dinoboff/classmentors-1,shiquan-lim/classmentors,dinoboff/classmentors-1