* Remove unused parent variable from twruDU constructor
* Replace manual checks for /data/media with DU's check_skip_dirs()
function
* Remove check_skip_dirs(A,B) function which duplicates the
functionality of check_skip_dirs(A)
* Remove redundant trailing slash removal from
check_absolute_skip_dirs(); this function is only accessed through
check_skip_dirs()
Change-Id: Icfe8d71de36e33db6749fc5896dd3eafbcf7c9a4
/data/*/media directories are mistakenly being excluded from the size
calculation. Change to absolute dir exclude so that only /data/media is
excluded.
Change-Id: I6e97604d44e6ea2bdf7dfd8c68a2f90ba6d44415
