Unnecessary flags in directory deletion

[belericant]

Current Behavior
Removing a directory on *nix systems through a call to the s_delete_directory subroutine invokes rm -rf to remove a directory along with any files contained within. Calling the wrong path with elevated permissions can be dangerous. Only directories created by the program should be deleted, which should not necessitate the use of the force flag with correct filesystem permissions. If there are incorrect filesystem permissions, it is not the responsibility of the subroutine to rectify them.

Proposed Change
Change the system call to rm -r