base

Delete Paint.getTextGlyphs()

The Paint.getTextGlyphs() method was used for testing the old Arabic
shaper and is entirely obsolete. Note that this is the very last
dependency (other than some enums in the header) for the old TextLayout
code path.

Change-Id: I7b596f0c0942ed50987fc8e0478cd93e667f1f9e