Remove misc. dead code.

These files are not referenced by any .gyp file in Skia or Chromium.
ninja -C out/Debug everything still builds.

BUG=skia:
R=halcanary@google.com, mtklein@google.com

Author: mtklein@chromium.org

Review URL: https://codereview.chromium.org/222683003

git-svn-id: http://skia.googlecode.com/svn/trunk@14035 2bbb7eff-a529-9590-31e7-b0007b416f81
3 files changed