Remove legacy font configuration files.

They were no longer in use by frameworks. They were never part of a
public API and were kept in the system just in case a legacy app read
them. They had also been deprecated for three releases, which should
have given everybody enough time to switch.

Bug: 21785593
Change-Id: Ib80bcea92e45b608388455ef576bbfde647f77db
5 files changed