Get rid of LinearTransform

It had 3 clients
- one in vendor/google_athome which was disabled
- one in a device specific folder, which will die out
- and one in frameworks/base

This reverts commit 6c942304edd136ec5b326265e249c6f1be27830b.

Test: compile/run
Bug: treble cleanup

Change-Id: Ia76009d550c294198c083cf89718bc498b5c9e3e
3 files changed