Revert "Tonemap in RecordingCanvas"

This reverts commit 9776d3e35718efd9ea08400fe0dbea61dc6386ce.

Reason for revert: DroidMonitor-triggered revert due to breakage https://android-build.googleplex.com/builds/quarterdeck?branch=git_master&target=errorprone&lkgb=9546489&lkbb=9546754&fkbb=9546547, bug b/267342770

Change-Id: I58f6a0350287a92199a9426f3d3d908a279821d8
7 files changed