Remove usage of hidden APIs Build.IS_DEBUGGABLE & XmlUtils

Bug: 143223966
Test: make & basic sanity

Merged-In: If9e3c53d778b493c25f50c2dbb4cc4b194cd6274
Change-Id: If9e3c53d778b493c25f50c2dbb4cc4b194cd6274
(cherry picked from commit 1379e79a3374990f6b580a42f0566d386e0d8c70)
4 files changed