Fix build error.

Investigating the git logs, it seems that the following files are removed in Q from the platform/frameworks/base project:

* config/hiddenapi-private-dex.txt
* config/hiddenapi-public-dex.txt
* config/hiddenapi-removed-dex.txt

Removing these files, and then taking the Q merge for Android.mk, the build completes successfully.

However, I don't know if this is the right approach to take.

Change-Id: I08b01e590a68452e63a9931be06521057e24dbfe
4 files changed