Revert "DeviceUtils:  add some commonly used helper functions from kk44"

The use of these is unnecessary. Find cleaner ways to accomplish the things that needed them.

This reverts commit 5a20b5e348511ef49971aecc2382a050d5eaf372

Change-Id: Ia4d24b4a21aa5e4331852bba2e8ac0add33e1bd0
Merge "Revert "DeviceUtils:  add some commonly used helper functions from kk44"" into L5