GitLab

-Profile avatar images not used on Android
-Removed all except one placeholder avatar icon
-Last avatar not removed due to having large part of
profiles code still being dependent on avatar icon code
-Configured some profile tests not to run on Android
-Removed profile_avatar_icon_util unit tests on Android

Bug: 799078
Change-Id: Ic7b726c3ac58f8f1f6b24c48d95ac81d08aa9eb4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1652193Reviewed-by: Mitsuru Oshima <oshima@chromium.org>
Reviewed-by: Sam Maier <smaier@chromium.org>
Reviewed-by: Mihai Sardarescu <msarda@chromium.org>
Reviewed-by: Tibor Goldschwendt <tiborg@chromium.org>
Commit-Queue: Jacques Chen <jacqueschen@google.com>
Cr-Commit-Position: refs/heads/master@{#672084}