Revert addition of subproject to main repo dir
Revert addition of subproject to main repo dir

This reverts commit 50b33ace865d815920276c99c355bc3195e4beb4.

Purdue-ACM-SIGAPP/SafeWalk,Purdue-ACM-SIGAPP/SafeWalk,Purdue-ACM-SIGAPP/SafeWalk,Purdue-ACM-SIGAPP/Purdue-App-Old,Purdue-ACM-SIGAPP/SafeWalk,Purdue-ACM-SIGAPP/SafeWalk,Purdue-ACM-SIGAPP/Purdue-App-Old,Purdue-ACM-SIGAPP/SafeWalk