Remove SK_FM_NEW_MATCH_FAMILY_STYLE_CHARACTER.

This removes the old guarded code and enables the new api
introduced with "Update fontMgr to take list of bcp47 language tags."
c20386e3937d3d398ac9b35f9c7d997e972ade98 . Blink on Android is
already using the new code.

Review URL: https://codereview.chromium.org/705843004
9 files changed