Merge EXTENDED font profile with the next (unnamed) profile.

This is now possible since we have less space restrictions on
devices.

This helps make sure that devices don't mistakenly ship with a
limited font support simply because they didn't turn on the extended
font profile.

Although the larger version of Droid Sans Fallback is no longer used
in any font profile for a device, it is kept since it's used by the
SDK.

The Nanum Gothic font is no longer used in any device profile either,
but it's kept in the fallback chain, so the SDK (that uses it)
continues to work.

Bug: 19668057
Change-Id: I6e32c4c98745e9b6aff6684d993943a19aebf6f7